问题

Please keep your mobile phones_______ while having a meeting.

A:clean it up
B:clean up it
C:to clean it up
D:to clean up it;

正确答案是：

同类题型

Please call Allan _______ 345—7095.

下列词语中没有错别字的一组是

You all like your English teacher? — Yeah, she devotes herself____ to teaching and it earns her a good reputation[ ]

Mrs .White couldn’t remember_____ her mobile phone． —In fact it was just in her handbag．

our classmate accept yourinvitation—No, he ____ refused