-Why are there a lot of dead fish in the river?
-Because they were ______ by the polluted water.
-Because they were ______ by the polluted water.
| A.caught | B.poisoned | C.burned | D.protected |
It is polite ______ you to give seats to the elderly.
| A.with | B.for | C.of | D.to |
-Look, your sister is playing the piano over there.
-She ______ be my sister. She has gone to America.
-She ______ be my sister. She has gone to America.
| A.mustn't | B.can't | C.shouldn't | D.may not |
I am too busy to listen to her ______ talking. She has talked for about two hours.
| A.hopeless | B.endless | C.harmless | D.careless |
We want to be ______ because, as students, we should learn to help other people.
| A.performers | B.interviewers | C.patients | D.volunteers |
The ______ old woman often walks in the park ______.
| A.alone; lonely | B.alone; alone | C.lonely; alone | D.lonely; lonely |
I ______ to think my job was ______. But now I think it is interesting.
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| A.used; bored | B.am used; boring |
| C.am used; bored | D.used; boring |