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
推荐题目
--I stayed at a hotel while in New York.  ---Oh, did you? You ___ with Babara.
#89408
A
could you stayed
B
could stay
C
would stay
D
must have stayed
 If only I ________ driving before. 
#86751
A
learn
B
learned
C
had learned
D
would learn
Nancy was very disappointed to hear the news. I wish I        her about that.
#87424
A
hadn’t told
B
didn’t tell
C
wouldn’t tell
D
can’t tell
If Alice ______this afternoon, the meeting should be put off.
#89830
A
would not come
B
might not come
C
should not come
D
could not come