_____ we were worried about was _______ they could manage to control the pollution.
| A．That; how | B．That; whether | C．What; that | D．What; whether |
__ of the two girls is fond of music.
| A．Taller | B．The taller | C．Tallest | D．The tallest |
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 |