【题目】—What are they doing? ( )
—_______________.
A.They are mine.
B.They drink the water.
C.The dogs are playing in the garden.
【答案】C
【解析】
句意:—他们在做什么?—他们在喝水。分析问句可知是现在进行时,答语时态也要是现在进行时,AB都是一般现在时,C是现在进行时。故选C。