03．I don’t know how commas.——青夏教育精英家教网——

摘要：03．I don’t know how commas.

网址：http://m.1010jiajiao.com/timu3_id_2859943[举报]

I don’t know how ________ commas.

查看习题详情和答案>>

I don't know how_______commas.

A. use
B.  to use
C.  used
D.  using

查看习题详情和答案>>

I don't know how _____ commas.

A. use
B. to use
C. using
D. used

查看习题详情和答案>>

I don't know how I can use commas. (改为同义句)

I don't know ________ ________ use commas.

查看习题详情和答案>>

I don't know how I can use commas. (改为同义句)

I don't know ________ ________ use commas.

查看习题详情和答案>>