问题
______is very important for us to learn English well.
A:That
B:This
C:It
D:All
B:This
C:It
D:All
正确答案是：
同类题型
The number of the students in our school is about nine ____. ____ of them are boys.
I think teenagers shouldn’t be allowed to smoke.－I agree ______ you.[ ]
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The teachers are strict us and we are strict _ our homework.[ ]