They have already succeeded ______ saving many endangered animals .A．inB．forC．to_刷题宝

题干

They have already succeeded ______ saving many endangered animals .

A．in

B．for

C．to

D．on

上一题下一题 0.64难度单项选择更新时间:2016-05-19 03:13:05

答案(点此获取答案解析）

小学学科试题库

初中学科试题库

高中学科试题库