In some parts of  China, winds ______ electricity instead of coal.
#12241
A
are used to producing
B
get used to produce
C
used to producing
D
are used to produce
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I tried to ______ Tom last night, but no one answered the phone.
#13794
A
call up
B
call on
C
call off
D
call for
She ________ in his English till now , but Wei Hua still works hard in order to be____ at it.
#13180
A
has made a progress; better
B
is making progress; more better
C
is making a progress; better
D
has made progress; better