There was a __________look on her face because a________ problem _________the little girl.
| A．puzzled; puzzled; puzzled | B．puzzling; puzzling; puzzled |
| C．puzzled; puzzling; puzzled | D．puzzling; puzzled; puzzling |
I have a lot of homework today.I won’t go out until ___done.
| A．it is | B．it has | C．it will be | D．it has been |
He felt that there __ something wrong about it.
| A．is | B．have | C．must be | D．must have |
--Would you mind opening the window?--____.
| A．That’s all right | B．OK | C．Yes, you can | D．Certainly not |
--My father never smoke. --___.
| A．So does my | B．Nor does my | C．So does mine | D．Nor does mine |
It is suggested that the students __ to read the bad books.
| A．should not be let | B．must not be let | C．should not be allowed | D．must not be allowed |