It is nice to do something for someone else out of the blue and not to expect anything ______.
| A．in relief | B．in return | C．in turn | D．in need |
In my ________，there is no need to worry about exams.
| A．idea | B．view | C．thought | D．information |
Someone called me up in the middle of the night, but they hung up ________I could answer the phone.
| A．since | B．until | C．before | D．as |
The child asked his mother go out to play tennis.
| A．that he could | B．if he could | C．whether could he | D．that if he could |
Good use that the villagers have been ________ the water resources has brought them a large income.
| A．making of | B．putting into | C．taking on | D．providing with |
There was a lot of fun at yesterday's party. You ________ come，and what a pity!
| A．might have | B．should have | C．could have | D．would have |