1. We have had to raise our prices because of the increase in the cost of ________ materials.
A. raw B. rough C. original D. primitive
2. The defeated army had to ________ hastily to where they came from.
A. remove B. restrain C. retreat D. remain
3. The little girl woke up screaming because she had had a ________.
A. daydream B. nightmare C. fantasy D. nightfall
4. The weather scientists ________ a fine summer based on all the statistics they’ve had.
A. predicted B. proposed C. prevented D. imagined
5. There are ________ periods in an animal’s life when it is capable of learning a great deal in a very short time.
A. urgent B. violent C. serious D. crucial
6. Before using your new pressure cooker, read the following ________ carefully.
A. notices B. orders C. advertisements D. instructions
7. The slowdown in the development of the company is likely to ________ people from making investments.
A. decrease B. discourage C. disturb D. degrade
8. Mr. Thomas’s funny story brought about ________ laughter from the audience which could be heard miles away.
A. a set of B. a bunch of C. a flood of D. a burst of
9. These machines ________ cotton ________ cloth.
A. convert… into B. turn…to C. alert…to D. relate…to
10. Put the key in the ignition and turn it to ________ the car ________.
A. build…up B. start…up C. set…up D. launch…up