I often hear the girl ______ beautifully next door. When I passed by the door,
I heard her ______ just now.
| A．sing； singing | B．sings； sing | C．sing； sings | D．singing； sing |
The rain forests in this area _______ smaller.
| A．is becoming | B．are becomeing | C．is getting | D．are getting |
The doctor did what they could _____ the dying man.
| A．save | B．to save | C．saved | D．saving |
-- Where is Mr. Lee at the moment
--- He _____ chess with his neighbour, but I’m not sure.
| A．maybe play | B．may be play |
| C．may be playing | D．must be playing |
In order _______ late, many students get up very early every morning.
| A．not be | B．to be | C．to not be | D．not to be |
We should spend ______ money solving ______ problems.
| A．more, more | B．less, more | C．fewer, more | D．fewer, less |