People try to avoid public transportation delays by using their own cars, and this __________ creates further problems.
| A．in short | B．in case |
| C．in doubt | D．in turn |
The little girl ________ a cry at the sight of a big snake.
| A．let out | B．gave out | C．made out | D．shouted out |
Penicillin was then produced ________ in order to meet the demands of the armies.
| A．in large amounts | B． in large plenty |
| C．in large quantities | D． in large number |
A study ________ in the U.S.A. in 1977 showed that the chemical ASA in aspirin could prevent a stroke.
A. carrying out B. carried out C. working out D. worked out
I wonder if this is the computer you want______ .
| A．to have repaired | B．to have it repaired | C．it to be repaired | D．to repair it |
The teacher insisted that I______ a mistake and insisted that I______ the physics problem again.
| A．make; did | B．made; did | C．make; do | D．made; do |