对下列句中画线的部分内容提问

对下列句中画线的部分内容提问
1,They 画线：went to plck apples on the farm 其他部分：last week
_____ _____ they ______ last week?
2,My birthday is 画线：on September the 14th
_____is ____ birthday?
3,Eighteen minus eight is 画线：ten
_______ eighteen minus eight?
4,There are 画线：about forty sheep on the hill
_____ ______ sheep ______ ______ on the hill?
5,It's 画线：about four kilometers away form here
______ ______ is it form here?
6,We often 画线：walk to school in the morning
______ _______ you often _____ to school in the morning?
7,The watermelons are 画线：green
____ ______are the watermelons?
8,Su Hai and Su Yang are 画线:in the computer room
_____ ______ Su Hai and Su Yang?
9,His father is cleaning the car
______his father _____?
There are 画线:Jim's trousers.
_____trousers are these?
10,The man 画线:in the car is my uncle
______ ______is your uncle?