Question

__ Jim was mending his bike,I went to see him

Answer 1

虞其君英语解答：
__
Jim
was
mending
his
bike,
I
went
to
see
him.
A
When
B
Because
C
While
D
Where
答案：C
中文：当Jim在修自行车的时候，我去看他了。
解析：when一般紧跟时间点，while一般紧跟时间段，但也可以表示时间点。
because（因为）与where（哪里）在这里都不合适。