We found some precious jars and vases in an ancient tomb, ______you know , are valuable.
| A．even the pieces of which | B．which even pieces |
| C．even the pieces of them | D．whose even pieces |
BMW’s boss _____ the decision to fire 8,000 employees, saying the group needed to continue cost-cutting.
| A．witnessed | B．advised | C．defended | D．adopted |
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 |