At times, it is difficult to tell what sort of greeting (4) ___________ is followed.

Ever since it was first possible to make a real robot, people have been hoping for the invention of a machine that would do all the necessary jobs around the house. If boring and repetitive factory work could be (1) ________ by robots, why not boring and repetitive household chores too? A factor robot (2) ________ one task endlessly until it is reprogrammed to do something else. It doesn’t run the whole factory. A housework robot on the other hand, has to do several different (3) ________ of cleaning and carrying jobs and also has to cope (4) ________ all the different shapes and positions of rooms, furniture, ornaments, cats and dogs. (5) ________, there have been some developments recently.

A factor robot (2) ________ one task endlessly until it is reprogrammed to do something else. It doesn’t run the whole factory.

The director imagines how the film should look and guides the actors and the (4) _______ as they make the movie.

If you (3) _______ you can have a musical experience by imagining the sound of a piece of music, then you think (4) _______ can exist without sound.

The invention of the mobile phone has undoubtedly revolutionized the way people communicate and influenced every aspect of our lives. The issue is whether this technological innovation has done more harm than good. In order to (1)______ the question, we must first turn to the type of consumer. Presumably, most parents buy mobile phones for their teenagers to track their whereabouts and ensure their safety. We can also assume that most teenagers want mobile phones to avoid missing out (2)______ social contact. In this context, the advantages are clear. However, we cannot deny the fact that text messages have been used by bullies to intimidate fellow students. There is also (3)______ evidence that texting has affected literacy skills. The ubiquitous use of the mobile phone has, (4)______ question, affected adult consumers, too. What employee, on the way home from work, would be reluctant to answer a call from their boss? Apparently, only 18% of us, according to a recent survey, are willing to switch off our mobile phones once we’ve left the office. Admittedly, mobile phones can be intrusive but there are obvious benefits to possessing one. Personally speaking, they are invaluable when it comes to making social or business arrangements at short (5)______. According to a recent survey, they also provide their owners with a sense of security in emergency situations. In conclusion, mobile phones do have their drawbacks, but these are outweighed by the benefits. I would argue that it is not the tool that chooses its purpose, but the user.

This (1)________ many problems, including serious air pollution, lengthy delays, and the greater risk (2) ________ accidents.

There are strict (3) ___ for the preparation of school meals, which have to include one (4) ___ of fruit and one of vegetables, as well as meat, a dairy item and starchy food like bread or pasta.

Unfortunately, diets don‘t work for most people. They do lose weight but then go off the diet and put it back. Building a sensible diet and exercise plan is the key (1)_____ maintaining a consistent weight. You need to figure out how many calories you need in a day and how many you actually (2)______. The next step is to add exercise (3)_____ you can raise the number of calories you can consume per day. Burning 250 or 500 calories per day can make a big (4)_____ . You can ride an exercise bike while you are watching television (5)______ you can take the stairs instead of the elevator. Find an exercise partner. Exercises can be a lot easier if there is someone to talk to. It‘s a good idea to wear firm-fitting clothes if you are on a diet. Tight clothing acts as a reminder of what you are trying to accomplish.

To many people, their friends are the most important things in their life. Really good friends (1)___ the good times and the bad times, help you when you have got problems and never turn their backs on you. Your best friend may be someone you have known all your life, someone you have grown up with and been through lots of (2)_____ and downs with. There are all sorts of things that can (3)______ about this special relationship. It may be the result of enjoying the same activities, having the outlook on life or sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for years. (4)_______, it really takes you years to get to know someone well enough to consider your best friend. To the majority of us, this is someone we trust completely and who understands us better (5)______ anyone else. It is the person you can turn to for impartial advice and a shoulder to cry on when life gets you down.

A housework robot on the other hand, has to do several different (3)_____ of cleaning and carrying jobs and also has to cope (4)______ all the different shapes and positions of rooms, furniture, ornaments, cats and dogs.