__________ it is true that a student`s most important goal is to do well in his or her studies，it doesn`t need to be the only goal．
| A．When | B．As | C．While | D．Before |
He had little idea that it was getting so late， ?
| A．didn’t he | B．wasn’t it |
| C．did he | D．was it |
I like to get up early so that I can get plenty of work before lunch．
| A．to do | B．done |
| C．doing | D．being done |
——I hope I can see you at my wedding ceremony．
——Oh，dear，I almost ．When is it?
| A．forgot | B．had forgotten |
| C．will forget | D．have forgotten |
According to Beijing Review，Beijing was attacked by such a sandstorm few citizens have experienced before．
| A．which | B．that |
| C．when | D．as |
The customer and the seller argued for quite some time before they finally agreed the price．
| A．on | B．with |
| C．to | D．at |