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1 tháng 5 2020

Exercise 6. Choose the word (a,b,c, or d) that best fits each of the blank speces.

Computers are very (31)_____ but they can also cause problems. One kind of problem is with the computer's memory. It is not perfect, so (32)_____ computers lose important information. (33)_____ problem is with the machinery. Computers are machines, and machines can break down. When computers break down, they (34)_____ erase information, like chalk on a blackboard. Or they may stop doing anything at all. And there is another different kind of problem with computers. Some doctors say they may be bad for your (35)_____ . They say you should computers all day.

31. A. useful B. careful C. helpful D. a & c

32. A. nearly B. hardly C. never D. sometimes

33. A. Other B. Another C. Some D. Many

34. A. may B. must C. should D. need to

35. A. health B. healthy C. healthful D. healthily

7 tháng 2 2021

Exercise 6. Choose the word (a,b,c, or d) that best fits each of the blank speces.

Computers are very (31)_____ but they can also cause problems. One kind of problem is with the computer's memory. It is not perfect, so (32)_____ computers lose important information. (33)_____ problem is with the machinery. Computers are machines, and machines can break down. When computers break down, they (34)_____ erase information, like chalk on a blackboard. Or they may stop doing anything at all. And there is another different kind of problem with computers. Some doctors say they may be bad for your (35)_____ . They say you should computers all day.

31. A. useful B. careful C. helpful D. a & c

32. A. nearly B. hardly C. never D. sometimes

33. A. Other B. Another C. Some D. Many

34. A. may B. must C. should D. need to

35. A. health B. healthy C. healthful D. healthil