---Is there anything wrong, Bob? You look sad．
---Oh, nothing much．In fact, I of my friends back home．
| A．have just thought | B．was just thinking |
| C．would just think | D．will just be thinking |
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