He is one of those who ______ very hard.
| A．works | B．work | C．is | D．are |
—You couldn't have chosen any gift for me. 
—I'm glad you like it so much.
| A．bad | B．worse | C．nice | D．nicer |
This kind of cloth _______ well. I think it is worthy ________.
| A．washes; buying | B．is washed; buying |
| C．washes; to be bought | D．is washed; to be bought |
______has the children burdened with too much homework nowadays?
| A．It is who that | B．Who is it that |
| C．It was who that | D．Who was it that |
There are ____ to show that a new,different city is coming out of its dark past.
| A．signals | B．marks | C．signs | D．symbols |
—What’s up? You look down.—I have piles of papers ________, but I type so slowly.
| A．to be typed | B．typed | C．to type | D．being typed |