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—What should I do, doctor?   —______healthy, you should take more exercise.
#50576
A
To keep
B
Keep
C
Keeping
D
Kept
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He was so busy ____ his homework that he forgot to have supper.
#49628
A
to do
B
do
C
doing
D
does
I spent half an hour ___________ my homework.
#49163
A
finish doing
B
to finish doing
C
finishing to do
D
finishing doing
 ------What’s Mr. Green doing there? ------He is looking for a space _________his car.
#50673
A
park
B
parks
C
parking
D
to park
I like the ____ the story. It’s  fun.
#51243
A
begin
B
begin of
C
beginning
D
beginning of
 Let’s go to Beijing ______ the Great Wall.
#50550
A
to look
B
watches
C
to visit
D
visits