Often he ________ sit for hours doing nothing at all in front of the computer.

Often he ________ sit for hours doing nothing at all in front of the computer.

A.was used to

B.would

C.used to

D.should

答案及解析： B

解析：

【巧解导析】would只用来说明过去的重复动作，不表示情况或状态；used to一般不与时间状语连用．本句表示过去“总是”，但并不表示现在已不再如此．