Question

— I called you at six last night, but you didn’t pick up.
— Oh, I ________ my mom ________ in the kitchen.

A．helped; to cook	B．helped; cooking
C．was helping, cook	D．was helping; cooking

Answer 1

C

解析试题分析：句意：我昨晚六点给你打电话，但是你没接。噢，我正在厨房里帮妈妈。help sb. do/to do sth.帮助某人做某事，help后跟动词原形或不定式都可以，过去进行时用was helping，故选C。
考点：考查过去进行时。