1.He must have had an accident , or ___ then.

来源：百度知道 编辑：UC知道 时间：2024/05/13 08:28:01
1.He must have had an accident , or ___ then.
A. would have been here
B. had to be here
C. should be here
D. would be here
2. He walked in the street without ____ to buy anything .
A. intention B. purpose C. heart D. thought
3. The scientist is several years junior ___ Mr. Smith.
A. than B. to C. for D. on
请翻译，并解析为什么！谢谢！

1 A 后面那句用虚拟语气,对过去的动作虚拟,相当于if引导的状语从句中的主句时态变化:"他肯定是出事故了,否则他那时早就该在这儿了"
2 A 固定搭配:"他在街上漫步,根本就没有购物的打算" intention目的意图打算 purpose目标目的 A比B更合适,CD都不通
3 B 固定句型.说某人比某人大/小几岁的句型有:
A be X years older/younger than B
A be X years senior/junior to B
A be B's senior/junior by X years.

D 过去完成时 简单省时的判断方法就是 前面有have 后面就要有have 完成时都要有have
A 完全是词义了 A是意图 B是作用 C是良心 D是思想
A 比较