IT WOULD BE MORE ______________ TO SWITCH THE MACHINE OFF AT NIGHT....

5. It would be more ______________ to switch the machine off at night. (economy)

VI. Choose the one option (A, B, C or D) that best completes the passage.

One kind of culture shock (1) _____ by international students in the United Sates is difficulty in communicating with Americans. When they

first arrive in the United States, they soon realize that their (2) ____ skill is poor. First of all, they lack vocabulary, and they have poor

pronunciation, so American people cannot understand them. For example, a few days ago, I (3) _____ an American student how to get to the

library, but because I have trouble pronouncing r’s and l’s, the student didn’t understand me. I finally (4) _____ write it on a piece of paper.

Also, Americans talk too fast, so it is often impossible to understand them. In addition, Americans also use a lot of slang and idioms (5)_____

meanings non- native speakers do not know. (6) ____, communication is probably the first problem the international students face in the

United States.