__Did you call Alice back?__Yes,I have called __back already
__Did you call Alice back?__Yes,I have called __back already
__Did you call Sara back?
Shall I have him call you back
you are () up.I will have to call you back
Let me see who called…?I have to make a phone call.Will you
happy birthday,Alice!so you have ()twenty-one already!
Happy birthday,Alice!So you have _____twenty-one already!
I have just called you.
i would have called you ( )
I'll call you back as soon as I have made a reservation.
I have a good friend___Mary.A.called B.call
call back是call you back 还是call back you 还有这句 i will call bac