In the past ,the miners had to be extremely to bear the uncomfortable conditions at mines.
| A．difficult | B．rough | C．tough | D．brave |
Living things are dying out quickly.Let’s ask____destroying the in the pastyears.
| A．what part people have been playing | B．people have played in |
| C．what part people have played in | D．people have been playing what part |
The man who was being followed stopped from time to time____he wanted to ti ehis
shoelaces.
| A．as if | B．like | C．what | D．as |
.____he was fired by the company is____he didn’t work hard.
| A．What; because | B．Why; because | C．Why; that | D．That; because |
It is well known to us all ____ China sent up a manned spaceship to outer space
Successfully last year.
| A．that | B．what | C．which | D．when |
The players expected there ____ more free time before coming back to the country
From abroad.
| A．is | B．being | C．have been | D．tobe |