It is believed that a new kind of drug ______ by the scientists and they are hopeful that they will succeed in a few months.
| A．has been developed | B．is being developed |
| C．is developing | D．has developed |
Come and see me whenever ______.
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it will be convenient to you |
It`s on the festival occasion ________the family get together ________he misses his father.
A where; that B which; when C when; that D that; when
The two boys are both 1.80 metres _______ height , but they are not ________ the same age.
| A．in; of | B．of; in | C．of; of | D．in; in |
The way________ _________ the problem sounds reasonable.
| A．referred; to solve | B．referred to; solving |
| C．referred to; to solve | D．referring to; to solve |
The ______ you make, the ________ you will make.
| A．more efforts; more progress | B．greater progress; greater efforts |
| C．more efforts; more progresses | D．many more efforts; much progress |