Henry _____ be at home now because he phoned me from the factory just now.
| A．mustn’t | B．isn’t able to | C．may not | D．can’t |
The boy looked very ______; he must have seen something _____ on the way to school.
| A．frightened ; frightening |
| B．frightened ; frightened |
| C．frightening ; frightened |
| D．frightening; frightening |
It took me over two hours to _____ Robert to change his mind, because he was too stubborn.
| A．advise | B．suggest |
| C．persuade | D．let |
If you ______, you agree to do something that you do not want to do.
| A．give up | B．give in |
| C．give away | D．give out |
—How long ____ in Guilin, Nancy ?
—About a week. I’ll give you a call when I arrive there.
| A．do you stay | B．did you stay |
| C．were you staying | D．are you staying |
______ of the students who took part in the military training is 450.
| A．A number | B．A great deal of |
| C．Lots of | D．The number |