______the problem clearly, Mary has to look for lots of information.
| A．To explain | B．Explaining |
| C．Explain | D．Explained |
【原创】--Must we finish the work now?
-- .You can do it after lunch.
| A．Yes, you must. | B．No,you mustn’t |
| C．Yes, you may. | D．No, you needn’t |
The new teacher seems _________ because the students don’t finish homework.
| A．friendly | B．angry |
| C．probably | D．gently |
– Nobody but you _______ late for school this morning.
--Sorry , I _______ to school when it began to rain heavily.
| A．was , went | B．were ,was going |
| C．was , was about to go | D．is, am going |
_________happily the children are flying kites!
| A．What | B．What a | C．How | D．How a |
Mr. Brown had got a __________ and he went to see a dentist.
| A．headache |
| B．toothache |
| C．stomachache |
| D．fever |