He pushed the door again and again, but it ___ open.
| A．may not | B．can't | C．didn’t | D．wouldn't |
Mr. Black left for Beijing this morning, his secretary ______ him there this Friday.
| A．joins | B．joined | C．joining | D．to join |
--- The fog is so thick that the express way ____ have been closed.
--- You are right. I ____ have thought of that. Now we have to take another road.
| A．can; should | B．may; can | C．should; must | D．must; should |
So sudden ______ that the enemy had no time to escape.
| A．did the attack | B．the attack did | C．was the attack | D．the attack was |
Men and women should be treated equally according to the law, but _____ there is great room
for improvement.
| A．in fact | B．above all | C．after all | D．in return |
--- What about ______ bike?
--- Don’t you think it all right to buy him that bike as _____ birthday gift?
| A．the, a | B．a, a | C．a, 不填 | D．不填, the |