— Each of the students, working hard at their lessons, ______the book. — So have I.
| A．is reading | B．has read | C．reading | D．reads |
.The teache rfound ____ difficult to decide____ he would take with him to attend the
conference.
| A．it;whom | B．himself;who | C．this;whom | D．that;who |
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 |