--Who has opened the door? ---I think it __ be Lin Tao. He’s always the first to get here.
| A．is able to | B．can't | C．must | D．mustn’t |
There are many people who have alike yours, but they don’t believe they have the power to do anything to improve our environment.
| A．settlement | B．commitment | C．disagreement | D．equipment |
Lily， ____ of the ______speech, started to read a novel.
| A．tiring, bored | B．tired, bored | C．tired, boring | D．tiring, boring |
_______ was known to them all that William had broken his promise ______ he would give each of them a gift.
| A．As; Which | B．What; that | C．It; that | D．It; which |
The ___ look on his face showed that he hadn’t expected it .
| A．astonished | B．astonishing | C．being astonished | D．having astonished |
___ from space, the earth with water ___70％ of its surface looks like a "blue blanket".
| A．Seen; covered | B．Being seen; covers | C．Seeing; covering | D．Seen; covering |