-What trouble do you have when you learn English?- __________the grammar in a right way. 
#49768
A
Use
B
To use
C
Using
D
To using
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----He always makes a lot of noise.-------You’d better _______a quiet place_______.
#51044
A
find, study
B
to find, to study
C
to find, study
D
find, to study
They preferred ________ to school ________ a bus.
#49971
A
to walk, take
B
walking, to taking
C
to walk, take
D
walk, to take