Yang Liwei，China’s first spaceman，prepared carefully for going to space so that he could be sure of success at his first _________.
| A．experiment | B．flight |
| C．attempt | D．try |
The teacher told the monitor to ______ all the students' names who were absent from class.
| A．set out | B．set about | C．set up | D．set down |
John may phone tonight，I don't want to go out ______ he phones.
| A．in case | B．in that case | C．so that | D．in time |
He is always helping people without expecting anything ______.
| A．in need | B．in fact | C．in danger | D．in return |
I will mark ______ everything you say.It is helpful to the English learners.
| A．up | B．down | C．out | D．off |
—Believe me，all your efforts will ______ some day.
—Thanks for your encouragement.
| A．pay back | B．pay down | C．pay off | D．pay for |