选择题1、Make yourself ---home and help yourself ---anything tha

选择题1、Make yourself ---home and help yourself ---anything that you'd like to eat.A.at,to B.at,with(正确答案为A,为什么?）
2、I looked under --bed and found --book I lost last week.A.the,the.B.不填,the（正确答案为A,为什么?）3、---You've left the light on.---Oh,so I have.---and turn it off.A.I'll go.B.I'm going（正确答案为A,为什么?）4、---Will you join us in the game?---Thank you,---A.but I'd rather not.B.and I'll join（正确答案为A,为什么?）
5、To save class time ,our teacher has ---students do half of the exercise in class and complete the other half for homework.A.us B.we (正确答案为A，为什么？） 6、--I think he is taking an active part in social work.---I agree with you---A.in a way B.in the way(正确答案为A，为什么？） 7 It was ---weather that we decided to go for a picnic that day.A.so fine B.such fine C.so fine a D.such a fine(正确答案为B，为什么？）