问题
选择题
The number of books in the bookshop is about 10,000 and a number of them
about science.
A.is
B.was
C.are
D.Were
答案
答案:C
考查动词的用法。依据第一句中的谓语动词“is(一般现在时)”可推断出第二句的时态也应是一般现在时,故保留A和C项;由短语“a number of...”的谓语动词是复数,故选C。