After a knock at the door, the child heard his mother’s voice ______ him.
| A．calling | B．called | C．being called | D．to call |
It was foolish of him to ____his notes during such an important test, and as a result, he got punished.
| A．point to | B．keep to | C．stick to | D．refer to |
Many a man and many a woman _____ that he or she had better education．
| A．wish | B．has wished | C．do wishes | D．have wished |
_____ it is _____ you obtain, you should share _____ your parents your feelings.
| A．What; /; to | B．Whichever; that; with |
| C．Whatever; that; with | D．Which; /; to |
About ____ gene-targeting drugs are already in testing pipeline. It won’t be long ____ they are put into effect.
| A．two dozen; before | B．two dozens; that | C．two dozens of; before | D．dozens; that |
People take naps at noon in warmer climates, ____ the heat makes work difficult in the early afternoon.
| A．which | B．what | C．where | D．when |