-- How do the twins usually go to school?

-- They_______ take a bus, but now they _______ walking.

A. used to; used to                     B. were used to; are used to

C. used to; arc used to               D. were used to; used to

1、C

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-- How do the twins usually go to school?

-- They_______ take a bus, but now they _______ walking.

A. used to; used to                     B. were used to; are used to

C. used to; arc used to               D. were used to; used to

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