—What shall we do this Saturday?
— it rains, we’ll have a picnic in Century Park.
| A．if | B．Unless | C．Because | D．When |
It’s _____ hard problem for the twins that ____ of them can work it out.
| A．so; neither | B．such a; neither | C．so a; neither | D．such a; none |
You ______ to the party if you’re so busy.
| A．don’t need come | B．not need coming |
| C．needn’t come | D．need not to come |
—_____I use your dictionary, Tom? —Of course, you _______
| A．Can; could | B．Could; can | C．Could; could | D．Can; might |
Simon improved his way of study. ________, he has made great progress.
| A．As a result | B．As usual | C．In other words | D．In all |
—What colour is _______ orange ? —It's____ orange .
| A．an,an | B．the, the | C．an / | D．a, / |