________a reply from my American friend Bill, I decided to send another email to him.
#93054
A
Not having received
B
Not being received
C
Not receiving
D
Not to receive.
推荐题目
 The children went home from the grammar school, their lessons __________ for the day. 
#98529
A
finishing
B
finished
C
had finished
D
were finished
 I had Helen's brother _____ the windows, but Helen had them _____ instead.
#98353
A
to clean; cleaned
B
cleaned; cleaned
C
cleaning; cleaned
D
clean; cleaned
 Do you know the Three Gorges Dam is the largest hydro-electric dam ever_______?
#91699
A
constructed
B
constructing
C
to be constructed
D
been constructed