-Jill，whothatinthewhitecoat？-It'smybrother，Joe．（）A.didB.doesC.areD.is

Question

-Jill，who        that in the white coat？
-It's my brother，Joe．（　　）

A. did

B. does

C. are

D. is

Answer 1

答案：D．
根据who        that in the white coat，可知主语 that 为单数，本句缺少谓语，所以这里应该选择be动词，意为"是"，本句为一般现在时，单数is，复数are．故选D．