what a terrible s___ !he lost all his money in a foreign country还有啊：I happened to konw she _____(call) me at the time yesterday.It is dangerous to drive a car ____(in\on) a snowy day.

what a terrible s___ !he lost all his money in a foreign country还有啊：I happened to konw she _____(call) me at the time yesterday.It is dangerous to drive a car ____(in\on) a snowy day.
what a terrible s___ !he lost all his money in a foreign country
还有啊：I happened to konw she _____(call) me at the time yesterday.
It is dangerous to drive a car ____(in\on) a snowy day.

what a terrible s___ !he lost all his money in a foreign country还有啊：I happened to konw she _____(call) me at the time yesterday.It is dangerous to drive a car ____(in\on) a snowy day.
1.situation 情况
2.was calling
at the time yesterday意思是“在昨天的这个时候”,所以用过去进行时最好.
3.on
在具体的某一天,介词使用on

had called
on

1. story
感觉这个词比较地道
2.was calling
根据at the time yesterday昨天的这个时候，判断时态为过去进行时。
3. on
在具体某一天，用on

situation。
was calling。
on。