4. Choose the best answer.
This time next week, students ... the chemistry exam.
A) have been finishing B) will have finished
C) will have been finishing D) have finished
5. Choose the best answer.
We ... allow our speed of production to drop.
A) may not B) don't have to C) needn't D) mustn't
6. Choose the correct answer.
The pupils assumed no one ... them.
A) could see B) sees C) can see D) was seeing
7. Choose the best answer.
Don't use these eggs! They are ....
A) bitter B) fresh C) sour D) rotten
8. Choose the best answer.
There was hardly ... wind, just a slight breeze.
A) a bit B) any C) some D) little
9. Choose the correct answer.
Though popular computer use exploded throughout the
world in the 1990s, academics ... by computer since the
early 1970s.
A) have been communicating B) used to communicate
C) are communicating D) communicated
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