— Why does the lake smell terrible?— Because large quantities of water ____.
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A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
Mary keeps talking about the party. She had a very good time,_______?
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A
hadn’t she
B
had she
C
didn’t she
D
did she
Nobody in our class but Tom and I ___ that our monitor is going abroad for further education.
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A
know
B
am to know
C
have known
D
knows
In that train accident, _____ who were killed was more than 2000.
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A
a number of people
B
the number of people
C
many people
D
a large number people