Identify the error in each sentence: 

The production of different kinds of artificial materials are essential to the conservation of our natural resources.

We like their …... 

He ______ the club on recommendation from his friend Jack.

Today the move away from rigid rules makes it much easier (1) ________ the right way to behave because there are fewer out and out ‘wrongs’. Of course there are still a few situations where inflexible rules (2) ________, although these are mainly concerned with official functions. But nine times out of ten, the way you choose to behave is (3) ________ you, with one very important proviso: that you keep firmly in (4)________ the basis (5)________ etiquette has grown up; in other words, the need always to consider other people's feelings first. 
Some people, for instance, are very informal and outgoing by (6) ________, while others prefer to be more reserved and formal. Younger people tend to be less formal than their parents. Habits can (7) ________ in different parts of the country. Behaviour which may be commonplace in the capital - like arriving later than the stated time - can often be unconventional (8) ________. Just remember the basic rule of consideration for others, and when in doubt, follow the example of those around you. Etiquette is a skill that is easily learned and it brings the benefits of other people's appreciation whenever you (9) ________ in practice. It's a pleasure to spend time with people who are reliably courteous and (10) ________; it's also pleasant to feel that you will always know what to do or say in any circumstances, mundane or extraordinary
(6).....................

When we __________ the taxi, I noticed that the metre already had 7.50 YTL written on it. 

Choose the correct answer to complete each following sentence by circling A, B, C or D. 

Kohmek, Inc., is seeking a suitable site -------the construction of its electronics factory.

 There is no water left in the ……. well.

Identify the one underlined word or phrase that must be changed in order for the sentence to be correct.

The dogs in the circus were trained to walk on their ........ legs.

Identify the error in each sentence: (A) Some people (B) have difficulty (C) to find a job (D) to support their family

If they _    me to their wedding party, I wouldn’t refuse.

Vietnamese athletes performed_______ and won a lot of gold medals. 

Identify the error in each sentence: I think it’s importance for us to find solutions to our problem

The water heater is__________ again, so I think that we should call a plumber to get it fixed properly. 

Choose the correct answer to complete each following sentence by circling A, B, C or D. 

The goal of the committee was to evaluate the company's bylaws and offer____________ for improvement.

Because Margot was such a bad liar, the school principal could easily see __________ the excuse she had made ___________ to explain her absence. 

The first person to __________ the idea of nuclear fission was a Hungarian physicist named Leo Slizard. 

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

An increased number of city dwellers has made the obsolete infrastructure worse and required a lot of repairs in these days.

Our English teacher would like __________.

Everyone has their …….. which are hardly recognized by themselves. 

Choose the best answer:
The consequences of the typhoon were disatrous due to the lack of effective measures.

Identify the one underlined word or phrase that must be changed in order for the sentence to be correct.

It is widely ........ that computers can make our lives easier.