____ you ask many different questions will you acquire all the information you need to know．
| A．If only | B．As far as | C．So long as | D．Only if |
It was __________________ back home from work.
| A．not until midnight did he go | B．until midnight that he didn’t go |
| C．not until midnight that he went | D．until midnight when he didn’t go |
— Didn’t you enjoy the performance last night?
— ___________. It was less wonderful than expected.
| A．Yes, I did | B．No, I didn’t | C．Yes, I didn’t | D．No, I did |
It was ______ that they all went swimming in the river.
| A．such a hot weather | B．such hot weather |
| C．so hot weather | D．so hot a weather |
—I came here by taxi and the driver ________ me 50 yuan.
—Really? You ________ by bus.
| A．paid; should come | B．cost; should have come |
| C．charged; ought to have come | D．spent; ought to come |
When we were young, every evening my brother and I ___ stay at home waiting for our mother.
| A．would | B．might | C．should | D．could |