Even if you are an experienced teacher, you sometimes ____ make some mistakes.
A. can B. must 
. should D. will
A large crowd _______ wildly as the pilot _________ her plane safely in California.
| A．had cheered; was landing | B．had cheered; landed |
| C．was cheering; had landed | D．was cheering; landed |
The women’s club _________ Lin, a foreign company employee who used to pay little attention to her appearance, to improve her dress style and become more confident and open-minded.
| A．enabled | B．had enabled |
| C．has enabled | D．enables |
―Are you still able to speak French and Russian?
―I _________. But I can only remember few French words. No Russian words at all now.
| A．am | B．was |
| C．have | D．had |
The two sides _______ to make peace, but something unusual _________.
| A．had intended; happened | B．intended; happened |
| C．intended; had happened | D．would intend; happened |
It was said that other possibilities ________ at the meeting the day before yesterday.
| A．were never paid attention | B．were never paying attention to |
| C．never paid attention to | D．were never paid attention to |