People have always been curious how living things on the earth exactly began.
| A．in | B．at | C．of | D．about |
What you said is reasonable, so I agree with you______.
| A．in a way | B．in the way | C．by the way | D．on the way |
We were told that ______ when Marx was already _______, he started to learn Russian.
| A．in 1840’s; in his fifties | B．in the 1840’s; his fifties |
| C．in the 1840’s; in his fifties | D．the 1840’s; in his fifties |
To our great disappointment, a lot of jobs ______ if the factory closes.
| A．will lose | B．will be lost | C．are lost | D．lost |
My friend ______ me to buy me a present for the coming Spring Festival.
| A．allowed | B．permitted | C．agreed | D．promised |
I have gone through a hard time, ______ I worked without food and money.
| A．which | B．where | C．when | D．that |