Question

—Where is Mother?
—She is in the kitchen. She ______the housework all morning.

A． does

B．has been doing

C．has done

D．was doing

Answer 1

B  

试题分析：句意：--妈妈在哪里？--她在厨房，她一个早上都在做家务。表示母亲一上午都在做家务，现在仍在厨房做，故应用现在完成进行时，表示从过去至今一直在持续的动作。选B。