You can never imagine what great difficulty I had ________ his parents. 
#96631
A
finding
B
of finding
C
to find
D
about finding
推荐题目
________ to our study is the best way ________ high grades.
#90501
A
Devote ourselves; to achieve
B
Devoting us; of achieving
C
Devoting ourselves; to achieve
D
Devoted ourselves; of achieving
He seems to         Jane. He knows her well.
#93823
A
introduce to
B
be introducing to
C
be introduced to
D
have been introduced to
___ time, he’ll make a first-class tennis player.  
#92431
A
Having given
B
To give
C
Giving
D
Given