______ __ a reply, he decided to send another e-mail. 
#101796
A
Not receiving
B
Receiving not
C
Not having received
D
Having not received
推荐题目
I can't see any coffee in this cupboard. _______?
#104530
A
Has it all been finished
B
Was it all finished
C
Has it all finished
D
Did it all finish
China _______ rapid progress in space technology in the last 10 years.
#101389
A
made
B
has made
C
had made
D
were making