In the past few years there _________great changes in my hometown .
A. have been B. were C. had been
I often hear the girl_______ beautifully next door. When I passed the door, I heard her _______ just now.
| A．sing, singing | B．sings, sing |
| C．sing, sings | D．singing, sing |
____ of the work_____ too hard for me, so I can't finish it without any help.
| A．Sixty percent; is | B．Sixty percents; are |
| C．Sixty percents; is | D．Sixty percent; are |
Do you write a report______wild animals_____danger for the newspaper?
| A．about; on | B．on; in |
| C．to; from | D．in; with |
–What do you think of________nature reserve you visited last weekend?
-It’s great. It is ________ideal home for wildlife.
| A．the ; a | B．the; an |
| C．a; an | D．an; an |
Please tell me _________.
| A．to choose which one | B．which one to choose |
| C．which one do you choose | D．you choose which one |