Question

【题目】I _____ in the hospital yesterday. I had to look after my grandfather.

A. am B. was C. are D. were

Answer 1

【答案】B

【解析】

试题分析：句意：昨天我在医院。我必须照顾我的爷爷。描述yesterday的状态，用一般过去时态，主语是I，be动词用was。故选B。