用适当的介词填空,使句子完整

题目

用适当的介词填空,使句子完整
1,could you run a hundred metres _____fifteen seconds?
2,what did you have _____linch?
3,could you stand on your foot ___a week?
4,i an tired ______studying all day.i want to have a holiday.
5,can you describe your ides _____your classmates?

答案

1,could you run a hundred metres in fifteen seconds?
2,what did you have for lunch?
3,could you stand on your foot for a week?
4,i an tired of studying all day.i want to have a holiday.
5,can you describe your ideas to your classmates?