【单选题】
The noise was so ____ that only those with excellent hearing were aware of it.
【单选题】
His landlady gave him a weeks ___ to leave the flat.
【单选题】
Why not buy a cheaper one, ___ you don’t have enough money?
【单选题】
I don’t think you’ll be able to understand this formula(公式)___ you finish school.
【单选题】
It is ten years ___ I left home.
【单选题】
With the popularity of smartphones, the micro blog __________ a good platform for the young to show themselves gradually.
【单选题】
___ he is poor, he is well contented.
【单选题】
It was ___ it rained heavily that they didn’t come.
【单选题】
1. We cant ___ one to change the habits of a lifetime in a short time.
【单选题】
There were dirty marks on her trousers ___ she had wiped her hands.