So many directors ________, the board meeting had to be put off.
| A．were absent | B．been absent |
| C．had been absent | D．being absent |
What I need is ___________ book that contains ____________ ABC of oil painting.
| A．a; / | B．a; the | C．the; an | D．the; / |
It was in the Xichang Satellite Launch Center , ________ I had visited, ________ Chang’eⅠwas launched at about 6:05 pm October 24, 2007.
| A．where; that | B．which; that | C．that; where | D．which; where |
After the class was over, the student apologized _______ the teacher ______ his coming late.
| A．/; because | B．/; for | C．to; because | D．to; for |
_____________ well prepared you are, you still need a lot of luck in mountain climbing.
| A．However | B．Whatever | C．No matter | D．Although |
I think only when he attends college _______________ more independent of his parents.
| A．will he become | B．he becomes | C．he will become | D．becomes he |