________of the chemical factories in their city _________pouring waste water into the river. It’s too dangerous.
| A．Two fifths; are | B．Two fifths; is | C．Two fifth; are | D．Two fifth; is |
—How much will you be paid?
—Tom, I do it not for money, but for experience. ____, it’s a kind of volunteer activity.
| A．However | B．Besides | C．Finally | D．Possibly |
It’s _______ MP5 . It can be used to listen music and watch movies . It’s ________ useful invention .
| A．a ; a | B． a ; an | C．an ; a | D．an ; an |
—The dictionary is an important _______ for students .Each of us must have one .
—I think so .
| A．secret | B．tool | C．method | D．plan |
—Excuse me, is there a post office near here?
— _______ I can’t hear clearly.
| A．What’s the matter with you? | B．I beg your pardon? |
| C．What’s up? | D．What’s wrong? |