They pretended ________ hard when their boss passed them.
A. to work B. being worked 
to be working D. working
If you don't have anything nice to say to other people, don't say .
| A．anything | B．something | C．nothing | D．everything |
In 2005,3.38 million students graduated from colleges and universities, ______20% increase from2004, some of whom remain out of______work.
| A．(不填); (不填) | B．a; (不填) | C．a; the | D．the; (不填) |
—Who has broken the window in my room?
—Who else it but your naughty son!
| A．could do | B．could have done | C．might do | D．must have done |
Della turned all of her pockets inside out only to find $ 1.87 buy Jim a present for Christmas.
| A．with what to | B．with that she can | C．in which to | D．with which to |
—What do you think of the concert?
—I really enjoy it. I didn't expect it wonderful.
| A．most | B．more | C．that | D．very |