The student couldn’t ______ what the teacher was trying to explain.
| A．recognize | B．grasp | C．study | D．achieve |
Jenny works hard as usual and it has __________. She got the first in the final exam again.
| A．turned out | B．paid back |
| C．paid off | D．turned up |
I was trying to sound __________ even when I was very nervous while I was making the speech.
| A．active | B．fluent |
| C．calm | D．peaceful |
—Who's the man talking to our teacher?
—A professor __________ a visit to our school.
| A．pays | B．is paying |
| C．has paid | D．paying |
Many people __________ death in the earthquake as a result of the delay of the food supplies.
| A．was starved to | B．starved to |
| C．were starved of | D．starved for |
In some cases, different approaches __________ the same scientific problem lead to the conflicting theory.
| A．to | B．of |
| C．in | D．for |