People love the  convenience of bottled water, but if they ________ the problem it causes, they ________ try carrying water in a reusable steel container instead of plastic.
#86487
A
realized; will
B
had realized; will
C
realized; would
D
have realized; would
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(2013·山西高三诊断)Honey, you ________ alcohol for they have stopped drinking.
#86569
A
may not have bought
B
mustn't have bought
C
can't have bought
D
needn't have bought
 “Did Jim come?” “I don’t know. He _______ while I was out.”
#89540
A
might have come
B
might come
C
mush have come
D
should have come
If you were to do it,the result______different. 
#87724
A
will be
B
would be
C
should be
D
would have been