1. —How about going to the cinema to watch the Wandering Earth?
—Good idea. I ________ how to kill the time.
A.wonder
B.had wondered
C.was wondering
D.will wonder
2. No sooner ________ than the traffic happened, Jane told the police.
A.had she gone
B.she had gone
C.has she gone
D.she has gone
3.—Why does the lake smell terrible?
—Because large quantities of water ________.
A.have polluted
B.is being polluted
C.has been polluted
D.have been polluted
4. We ________ an all-out fight to keep our skies blue, our waters clear, and our land pollution-free.
A.negotiated
B.inserted
C.launched
D.revealed
5. We all agree that the young boy’s brave act ________ the highest praise.
A.reserves
B.deserves
C.survives
D.serves
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