问题
What ______ the number of students in your school—About two thousand. A number of them _____ from the countryside.
A:is, are
B:is, is
C:are, is
D:are, are;
B:is, is
C:are, is
D:are, are;
正确答案是：
同类题型
The first textbooks ______ for teaching English as a foreign language came out in the 16th century.
Why don’t you like history —Because it is _____.
.—I didn’t go to work yesterday because my car broke down. —You ____ mine. I wasn’t using it then.
Developing science and technology must ____ peoplerather than harm them．