Many a professor _____ looking forward to visiting Germany now. Many scientists _____ studied animals and plants in the last two years.
| A．is; have | B．is; has | C．are; have | D．is; are |
Our bad living habits will destroy the earth. Only by changing we live
save the earth.
| A．what; can we | B．how; can we | C．where; we can | D．how, we can |
The changes in computer willin the near future.
| A．come about | B．come out | C．come along | D．come up |
She is in a poorof health, which worries her parents much.
| A．position | B．situation | C．condition | D．state |
Struck by the terrible earthquake, Wenchuan was from the outside.
| A．cut up | B．cut down | C．cut off | D．cut in |
Paper produced every year isthe world’s production of vehicles
A three times weight of B three times the weight of
C as three times as heavy D three times so heavy as