-- Hello, this is Jack. May I speak to Tom?-- Sorry, he isn’t in at the moment. If he _______ back, I’ll ask him to call you back.
#41008
A
come
B
comes
C
have come
D
came
推荐题目
____ is none of your business.  
#70207
A
What action I shall take      
B
What action shall I take  
C
It is what action I shall take     
D
I shall take what action