A lot of the waste thrown away in the U.S. __________ being shipped overseas to China, India, and other developing countries.
| A．breaks up | B．clears up |
| C．sums up | D．ends up |
Do you mind _______ alone at home?
| A．Jack's being left | B．Jack leaving | C．Jack having left | D．Jack to be left |
---What’s made Ruth so upset?
--- ______ three tickets to the folk music concert.
| A．Lost | B．Losing | C．Because of losing | D．Since she lost |
"Don't forget to come to my birthday party tomorrow."
"__________."
| A．I don’t' | B．I won't | C．I can't | D．I haven't |
There isn’t such a word ______ I know.
| A．as soon as | B．as long as | C．so long as | D．so far as |
You can choose _____ book you like among these.
| A．no matter what | B．whatever | C．whose | D．whichever |