问题 选择题

The workers in the Huashan Mountains have to       rubbish to keep the mountains clean.

A.turn up

B.pick up

C.mix up

D.give up

答案

答案:B

难度适中,考查词组的意思,turn up出现,发生,pick up拾起,收拾mix up混淆,弄混,give up放弃,答案选的应该是B。

单项选择题
单项选择题