The old woman has _______________ too many hardships in the past 10 years．
| A．broken through | B．gone on | C．broken down | D．gone through |
It be the vocabulary that caused you the problem in the exercise because you know a lot of words.
| A．couldn’t | B．may | C．should | D．needn’t |
Mr. Zhang once taught in a remote village in Anhui province as a volunteer, which was ______ only on foot.
| A．accessible | B．acceptable | C．available | D．appropriate |
This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment.
| A．have reflected | B．are reflecting | C．will reflect | D．reflected |
The terror attack at a Kunming railway station in southwest China's Yunnan Province, 29 lives and leaving 143 , has brought condemnation from around the world this week.
| A．claimed; wounding | B．claiming; wounded |
| C．claimed; wounded | D．claim; wound |
I have a big dream — I want to go into space, _______ will take some time to realize, I guess.
| A．what | B．it | C．which | D．where |