问题
A number of books in the library ____ been stolen so that the number of them ____ smaller than before.
A:has, are
B:has, is
C:have, is
D:have, are;
B:has, is
C:have, is
D:have, are;
正确答案是：
同类题型
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He slowed the bleeding by pressureto the wounds until the ambulance arrived.