the teachers in their school is about 200 and most of them are t

题型：不详难度：来源：

the teachers in their school is about 200 and most of them are teachers.

A．A number of ; women	B．A number of ; woman
C．The number of ; women	D．The number of ; woman

答案

解析

a number of 表示大量…作为主语时相当于复数形式，而the number of 表示…数量，因而作为主语时，相当于单数形式，同时woman 修饰名词时，变成复数形式，两个都变，故选C

举一反三

---Could you please help me check what"s wrong?
---Sorry, I don"t have much _______of the computer.

A．introduction

B．development

C．knowledge

D．information

题型：不详难度：| 查看答案

I often write ________ letter to my pen friend.

A．a eight hundred words

B．eight hundred words

C．an eight hundred word

D．an eight-hundred-word

题型：不详难度：| 查看答案

You should not turn left when you see the sign ______.
A.

题型：不详难度：| 查看答案

A babysitter is ________ .

A．a person who takes care of the baby	B．a baby’s mother
C．a baby’s toy	D．a baby

题型：不详难度：| 查看答案

A carrot is ___________ .

A．a flower

B．a stem

C．a leaf

D．a root

题型：不详难度：| 查看答案