—Sorry,butIhavesomethingimportanttotalktoyourmother.Iss...

问题详情：

—Sorry, but I have something important to talk to your mother. Is she in right now?

—Yes. Come in, please. She ______some cleaning in the kitchen.

A．is doing        B．does     C．did        D．was doing

【回答】

A

知识点：动词时态

题型：选择题