I’m not sure _______ red and white are a good match.
| A．weather | B．that | C．if | D．how |
My storybook is ______ of the two.
| A．the more interesting | B．more interesting | C．the more interested | D．more interested |
She ______ know the answer, but I’m not sure.
| A．maybe | B．may be | C．may | D．must |
--- Why don’t we go climbing tomorrow? --- ___________
| A．You’re great. | B．That’s right |
| C．What a good idea! | D．No, I don’t |
The little girl kept _____ the house, because she wanted to keep it _____.
| A．cleaning; clean | B．cleaning; cleaning |
| C．clean; clean | D．clean; cleaning |
___________ the three questions, which one is the most difficult to answer?
| A．As | B．In | C．Than | D．Of |