It was funny that when _______ Mary began to weep sadly. 
#68175
A
praising
B
praised
C
to praise
D
having praised
推荐题目
There is a new problem involved in the popularity of private cars _______ road conditions need _______. 
#73027
A
that; to be improved
B
which; to be improved
C
where; improving
D
when; improving
     the sentence , so he asked the teacher to explain it again.
#67881
A
Not having understood
B
As he didn’t understand
C
Having not understood
D
He didn’t understand