Once you want to do something, you must get down _____it well.    (    )
#89667
A
do
B
doing
C
to do
D
to doing
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I’ve worked with children before,so I knew what ________ in my new job.
#88715
A
expected
B
to expect
C
to be expected
D
expects
I saw Mary ____ the house.
#97508
A
open the door and go into
B
to open the door and to go into
C
open the door and to go into
D
open the door and went into
The child is much too young; I object ______ him alone at home.
#91320
A
to leave
B
leave
C
leaving
D
to leaving