My mother is ill. I _______stay at home and look after her.
| A．has to | B．must | C．would | D．have to |
_______ our food running out, we had to walk to a village for help.
| A．Since | B．Because | C．With | D．For |
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 |