10.Yao Ming put his effort _____ basketball training _____ a very young age.
#42082
A
to, in
B
to, at
C
into, in
D
into, at
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They arrived at our factory yesterday. 
#43732
A
came
B
got
C
reached
D
went
—Would you like to fish with me ?—I’m afraid I have no time . 
#43775
A
am free
B
am no free
C
am not free
D
have no free
 --_____ do you live from your school?--About ten minutes’ walk.
#43503
A
How many
B
How long
C
How far
D
How soon