用括号内单词的正确形式及when或者while填空
She(
)(take) ashower (
) the telephone(
)yesterday.
It(
)(start)to rain(
)I(
)(walk) to school two days ago.
(
)he(
)(arrive) at the airport just now,his friends(
)(wait) for them,
They ( )(eat)dinner(
)some one (
)(knock)at the door just now.
I (
)(meet)and old friend(
)I(
) (walk)in the street one hour ago.
The TV (
)(catch) fire (
)they(
)(work）yesterday.
最好给答案解释，谢谢各位
首先要明确，while 表“当...时候”的时候，主句和从句的两个谓语动词最好都使用进行时态，而when则有多种用法1. Sb. was doing ... when sb. did ...2. sb. did ... when sb. was doing ...3. sb. was doing ... when sb. was doing ...换句话说，when的使用范畴比while更广一些1. was taking, when, rang电话铃响的时候她正在洗澡。2. started; when; was walking当我走路上学时，天开始下雨。3. When; arrived; were waiting
