Question

【题目】-Where is Billy?

-He is ______ the phone with his friend Rob in the room. Rob is helping him ______ his math.

A. on; withB. in ; withC. on; atD. in; at

Answer 1

【答案】A

【解析】

句意：——比利在哪里?——他正在房间里和他的朋友罗布通电话。罗布正在帮助他学习数学。考查介词辨析。on the phone在通话，固定短语；help sb. with sth. 帮助某人做某事，固定搭配。根据句意结构，可知选A。