The zoo keepers is worried because the number of visitors __ smallerand small

题干

The zoo keepers is worried because the number of visitors __ smaller
and smaller.

A．become

B．became

C．is becoming

D．have become

上一题下一题 0.64难度单项选择更新时间:2014-04-18 05:24:59

小学学科试题库

初中学科试题库

高中学科试题库