．--- Shall I lock the lab now before I go home?
---___________. I’ll check it myself later.
| A．Go ahead | B．No problem | C．No hurry | D．Don’t bother |
_________ with such a failure, Arnold has no courage to live on the earth.
| A．Facing | B．Faced | C．To face | D．Having faced |
My friend Martine was very sick with a strange fever; ______, he could neither eat nor sleep.
| A．with the result that | B．after all | C．in turn | D．as a result |
–Is Bob still performing?
-I’m afraid not. He is said_________ the stage already as he has become an official.
| A．to have been left | B．to leave | C．to have left | D．to be left |
_____ in the queue for an hour,Tom suddenly realized that he had left his wallet at home.
| A．To wait | B．Have waited | C．Having waited | D．To have waited |
—How do you deal with the disagreement between the compnay and the customers ?
--- The key ________ the problem is to meet the demand _________ by the cutmoerss.
| A．to solving ,making | B．to solving ,made | C．to solve , making | D．to solve, made |