There is little doubt in your mind that he is innocent, _______?
| A．is there | B．isn’t there | C．is he | D．isn’t he |
—It’s hard to believe that Jack ________ have fought with the policeman.
—Yes. If one ________ ask for trouble, it can't be helped.
| A．would; will | B．must; may | C．should; must | D．need; dare |
___ you lose the paper document, sign in www. Sina.com, __ you might download all you need.
| A．If, which | B．So long as, what | C．In case, where | D．Even if, as |
When you read the book, you’d better make a mark _____ you have any questions.
| A．at which | B．at where | C．the place | D．where |
The child tiptoed quietly to the bird. ______ into the forest when he was about to catch it.
| A．Flew it away | B．Away flew it | C．Away it flew | D．Flew away it |
He _______ busy yesterday, or he _______ you with your experiment.
| A．was; had helped | B．was; would have helped |
| C．had been; would have helped | D．were; would have helped |