I don’t know when my son ________ back. When he_________ back, I’ll call you. 
#37010
A
comes, comes
B
will come, will come
C
comes, will come
D
will come, comes
推荐题目
Excuse me.Could you tell me_______?Which of the following is WRONG?
#36401
A
how to get to the city library
B
which is the way to the city library
C
the way to the city library
D
how can I get to the city library
—Do you know when your friend ___? --I’m not sure. I will tell you when he _____? 
#37115
A
does come; will come
B
comes; comes
C
will come; comes
D
will come, will come
 I don’t know _____ yesterday.
#37649
A
when he will leave
B
when will he leave
C
when he left
D
when did he leave