问题
选择题
---How many girls are there in your class?
---______ them_____ over twenty.
A．A number of, are
B．The number of, are
C．A number of, is
D．The number of, is
答案
答案：D
题目分析：句意：你班有多少女孩？人数是20多。A number of,一些、许多，后面的谓语用复数形式；the number of girls女孩子的人数，后面的谓语用单数形式。故选D。