—We’re supposed to be there at 6:00?
—_______ I know.
| A．As soon as | B．As far as | C．So long as | D．As possible as |
There are two lakes near Joe’s hometown, the larger of is nearly ten thousand square kilometers.
| A．whose | B．whom | C．which | D．where |
Perhaps it is true that nobody in the world knows exactly how the earth _____.
A. came up B
. came out C. came to power D. came into being
She is very _______ about this topic, so we’d better not discuss it in front of her.
| A．confident | B．crazy | C．sensitive | D．humorous |
I suggested that they set off early to avoid (避开) the traffic jam, _______ no one responded.
| A．on which | B．to which | C．about which | D．for which |
Nowadays, use____________of certain waste materials to protect the environment.
| A．is making | B．will make | C．is being made | D．will be made |