When products made in factories _____, they are thrown away as garbage.
| A．come to an end | B．are put to use |
| C．are used up | D．wear out |
With all the family members ______ on vacation without him, the boy felt extremely lonely and afraid.
| A．to have gone | B．going | C．had gone | D．gone |
Why so many youths are _____ on playing computer games often puzzles us a lot.
| A．fascinated | B．crazy | C．keen | D．fond |
_________ I picked up the receiver, I realized that someone had dialed the wrong number.
| A．The moment | B．A moment ago | C．After a minute | D．Minute after |
.— Thank you for your CD-ROM.I’ll return it as soon as I can.
—_________.I’ve got another one to spare.
| A．No problem | B．No hurry | C．With pleasure | D．Nothing much |
.In this university a medal with ten thousand dollars_________gains success in science and technology
every two years.
| A．is given to whoever | B．are given to anyone who |
| C．gives to whomever | D．give to everyone |