问题

An ant has two stomachs—one for itself, one for others—Really? Quite interestingI ________ anything about it
A:don't know
B:have known
C:haven't known
D:didn't know
B:have known
C:haven't known
D:didn't know
正确答案是:
同类题型
Shall I close the window for you— No. I am used to ______ with the window______.
Would you like to play tennis with me _________ itdoesn’t rain tomorrow —Sure, _________ I am busy.
I’m sorry.I___________ at you the other day-Forget it.I was a bit out of control myself.[]
I’m good ______ old people and I’m good ______ playingthe guitar, so I can join you to help them.