几个英语语法选择题

几个英语语法选择题
1.WHY!where's my mobile phone?maybe i left it on the plane.
My goodness!You _____ things behind.
A.haven't left B.didn't leave C.had never left D.never leave
2.At the point of our game ____ I'd have predicted the score to be about 9 to 1 in my favour,instead it was 7 to 9.
A.where B.when
3.How long do you suppose it is ____ he arrived here?
A.after B.since
4.The place,____,has been transformed into a modern capital city.
A.once a small town B.though being a small town
5.____ by the stones flying from all directions,he decided to find out what was happening.
A.Confused B.Being confused
回答者：小幽ice - 的一样
第2题 point这类词后的从句不是都要用where引导吗 为什么这里是when
第5题 为什么不用“Being confused”来表示强调原因？