—What do you do, Rita？
—I’m a clerk in a foreign company now．But I _____ English in a high school for 10 years．
| A．teach | B．have taught |
| C．taught | D．am teaching |
The young man rushed out of the room, ______ into his car and started it hurriedly, ______ to get home as soon as possible.
| A．got; hoped | B．getting; and hoped |
| C．got; hoping | D．getting; hoped |
______ is known to all is that the old scientist, for ______ life was hard in the past, still works very hard in his eighties.
| A．As; whom | B．What; whom | C．It; whom | D．As; whose |
The number of people present at the meeting ______ about one thousand, a large number of whom ______ experts from abroad.
| A．was; was | B．was; were |
| C．were; were | D．were; was |
—It is a long time ______ I saw you last.
—Yes, and what a pity it is since it will be a long time ______ we see each other again.
| A．before; since | B．when; when |
| C．since; before | D．when; then |
The conference was held to discuss the effect that tourism has ______ the wildlife in the area.
| A．in | B．on | C．at | D．with |