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I often spend a lot of time ________ after class.
#49146
A
practicing play
B
to practice playing
C
to practice to play
D
practicing playing
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The problem is         difficult for me        work out.
#51005
A
very; to
B
enough; to
C
so; that
D
too; to
I forgot      the key with me,so I can not open the door.
#50117
A
took
B
taking
C
to take
D
bringing
Mike invited me ______ tennis this weekend.
#50605
A
play
B
to play
C
playing
D
played
 She is going for vacation when she finishes ____________ her new book.
#49114
A
to write
B
writes
C
writing
D
write
It's very important ______healthy food.
#50053
A
eat
B
eating
C
eats
D
to eat