We should throw the rubbish into the dustbin ______ protect our environment. 
#49489
A
as a result
B
so that
C
in order to
D
in order not to
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The young man wears glasses because he spends too much time _____ the computer.
#48396
A
to work, in
B
working, on
C
to work, on
D
working, in
That’s very kind _________you _________me.
#47160
A
of; help
B
of; to help
C
to; to help
D
for; helping