31. To keep safe _______ an earthquake, you should remain at a spot in your room where nothing may fall on you.
| A．in search of | B．in advance of | C．in terms of | D．in case of |
Michelle found a job as a high school teacher which _____ spending quite a lot of time with students.
| A．enjoys | B．practices | C．involves | D．suggests |
No one ______ be more generous; he has a heart of gold.
| A．must | B．dare | C．need | D．could |
It was not until near the end of the letter ______ she mentioned her own plan.
| A．where | B．that | C．why | D．when |
_______ small, the company has about 1000 buyers in over 30 countries.
| A．Although | B．If | C．Once | D．As |
Shakespeare’s play Hamlet ______ into at least ten different films over the past years.
| A．had been made | B．has been made |
| C．was made | D．would be made |