----Will we see him again?
----- Yes. It will be not long _______ he comes back.
| A．before | B．after | C．since | D．when |
He thought the jar made ______ earth ______ little value and let me have it ______ only 5 dollars.
| A．of; of; for | B．from; of; by | C．from; with; for | D．of; of; by |
--- I recommend you first give up smoking, and then try to find a job so that you’ll start a new life.
--- _______.
| A．Not in the least | B．Easier said than done |
| C．It’s up to you | D．That all depends |
The conservation area is very important for preserving many animals and plants, which would ______ run the risk of becoming extinct.
| A．otherwise | B．therefore | C．though | D．instead |
______ we think of Ben, we have to admit that he is a highly competent man.
| A．However | B．Whether | C．Whichever | D．Whatever |
Lin Tao has returned from the UK recently. He ______ at Cambridge for four years, during which we ______ with each other on the Internet.
| A．has studied; has communicated | B．had studied; communicated |
| C．studied; had communicated | D．studied; communicated |