作业帮_____middle school students allowed to use mobile phones at school A.do b,did c,are d,canYesterday my sister had her computer___at the supermarket.A,mend B to mend C mended Dmendinginstead of 是不是加ing啊?请回答详细些,说明下理由,
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_____middle school students allowed to use mobile phones at school A.do b,did c,are d,canYesterday my sister had her computer___at the supermarket.A,mend B to mend C mended Dmendinginstead of 是不是加ing啊?请回答详细些,说明下理由,
_____middle school students allowed to use mobile phones at school A.do b,did c,are d,can
Yesterday my sister had her computer___at the supermarket.
A,mend B to mend C mended Dmending
instead of 是不是加ing啊?
请回答详细些,说明下理由,
_____middle school students allowed to use mobile phones at school A.do b,did c,are d,canYesterday my sister had her computer___at the supermarket.A,mend B to mend C mended Dmendinginstead of 是不是加ing啊?请回答详细些,说明下理由,
1.C 这里是被动语态
2.C have sth done 让某事被（别人）做
3.instead of 中的of为介词,所以后面的动词要加ing
第一个是个问句， 学生是否被允许使用手机
被动语态 只有 C
下一个
C
have sth done 把他的sth做了
instead of 后接名词 接动词要加ing
C被动语态。
Chave sth done使某物被……
instead of 后加doing。因为of是介词，后面不可直接加动词原形。