They love their daughter so much that they are always ready to do everything they can ________ her happiness.
#96346
A
to make sure of
B
make sure of
C
be sure of
D
to be sure of
推荐题目
 _______ the composition, John handed it to the teacher and went out of the room. 
#97434
A
Writing   
B
Having written  
C
Written   
D
Being written
___________ the man who lost the purse, Mike had to stay there longer.
#89864
A
Not finding
B
Not found
C
Not having found
D
Having not found
.Not ______ beautiful, the building is ______ now.
#97021
A
looking, being built
B
looked, being built
C
being looked, building
D
looking, built