Ninety ____ teachers and students plant ____

试题详情及答案解析

Ninety ____ teachers and students plant _____ trees every year.

A．thousands, million of

B．thousand, millions of

C．thousands of, millions of

D．thousand, million

答案：B

试题分析：句意：九万老师和学生每年种百万棵树；注意前边有具体数字的时候thousand不能变复数，当表示约数的时候要和of短语连用，并要变复数。millions of+名词的复数；thousands of,+名词的复数；故选B
考点：考查数词。