As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.
| A．exposure | B．distribution | C．expansion | D．emission |
His sister left home in 1998, and _______ever since.
| A．has not heard from | B．had not heard from |
| C．has not been heard of | D．had not been heard of |
I couldn't do my homework with all that noise
| A．to go on | B．goes on | C．went on | D．going on |
I have got my baby ______recently, and I'm going to have Jenny ________it tomorrow.
| A．looked after; care about | B．to take good care; care for |
| C．taken good care of; care for | D．looked after; taken good care of |
Hurry up! The train_______. You know, it________at 8: 30 am.
| A．leaves; leaves | B．is leaving; leaves |
| C．leaves; is leaving | D．is leaving; is leaving |
---Do you believe a person will be alive forever?
---_______ It's just a fantasy.
| A．Not really | B．Of course | C．Not especially | D．My pleasure |