Question

() 8. My sister was dancing in the living room

you called me last night.

   A. after   B. though

   C. while   D. when

Answer 1

8. D

8. D这里考查了 when和while的用法。主句是过 去进行时，表示某个动作正在进行，从句是一般过 去式，表示某个动作发生。while引导的从句，谓语 只能是延续性动词。故选D。