Question

【題目】Bob called to tell his mother that he couldn’t enter the house, for he his key at school.

A. had left B. would leave

C. was leaving D. has left

Answer 1

【答案】A

【解析】題干意思是：鮑伯打電話給他的媽媽說他進(jìn)不了家門，因?yàn)樗�把鑰匙忘在學(xué)校了。本句中的called表明動作發(fā)生在過去，而在打電話之前忘記拿鑰匙，所以應(yīng)用had left表示動作發(fā)生在過去的過去。