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If someone _________ into the store, smile and say, “May I help you?”

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If he had not spent his youth not learning anything, he ____ himself for his lack of knowledge now.

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A main clause is sometimes called a ……..clause

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She said she didn't sleep well last night and went upstairs to lie ___________

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Mr. Dick likes watching football but his wife_________

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Polar bears are in danger of dying out. (25) _____ some other endangered animals, it's not hunters that are the problem, it's climate change. Since 1979, the ice cap at the Arctic Circle where the polar bears live has reduced in size by about 30 per cent. The temperature in the Arctic has slowly been rising and this is (26) _____ the sea ice to melt, endangering the polar bears' home. The polar bears' main sources of food are the different types of seals found in the Arctic. They catch them by waiting next to the air holes seals have made in the ice. (27) _____ the bears are very strong swimmers, they could never catch seals in water. This means that the bears really do rely on the ice to hunt. Polar bears also need sea ice to travel. They can cover a huge territory and often swim from one part of the ice to another. They have been (28) _____ to swim up to 100 km, but when there is less ice, they may have to swim further and this can (29) _____ fatal to the bears. A number of bears have drown in the last few years and scientists believe that it is because they were not able to reach more ice before they became too tired and couldn't swim any further

Complete the sentences with the present simple or present continuous form.

We (visit) ................... our grandparents now.

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 ___ do you think of this hotel? It's pretty good

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Jack hid himself in his bedroom and did not want to see anybody, ____ they were

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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 (25) _____ more harm than good. In order to answer the question, we must first turn to the types of consumers. Presumably, most parents (26) _____ are always worrying about their children’s safety buy mobile phones for them to track their whereabouts. We can also assume that most teenagers want mobile phones to avoid missing out on social contact. In this context, the advantages are clear. (27) _____, we cannot deny the fact that text messages have been used by bullies to intimidate fellow students. There is also (28) _____ evidence that texting has affected literacy skills. The widespread use of mobile phone has, out of 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 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 (29) _____. They also provide their owners with a sense of security in emergency situations

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They are very______ and have no time for a hobby

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My sister is very fond.................... chocolate candy

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Nam was so tired that he __________ asleep in the class

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I'm ______ my brother is

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She tried to _________ the attention of the waiter

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Built at the beginning of the century, the Library of Congress houses one of the largest ............. collections of books in the world

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They are going to_________ their golden wedding anniversary next week.

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Although he mentions his childhood in the book, he never ........ it in much detail

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My friend, Lan is a ________ student. She always finishes homework on time.

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He came ____________ me in the club and asked if I would like to dance

Find which word does not belong in each group.