---Jack was late for Mr. Smith’s oral class this morning.
---______? As far as I know, he never came late to class.
| A．How come | B．So what | C．Why not | D．What for |
____ Yang Liwei was trained for the space travel is what I want to know .
| A．How | B．That | C．What | D．Who |
________ you are free tonight, why not go to the movies with me ?
| A．As if | B．Even if | C．As for | D．Now that |
_______ for the dog. You’d better __________ it.
| A．Look out; get away with | B．Watch out; get away from |
| C．Block out; get close to | D．Be careful; get out of |
______ seems strange to us is _______ the troublesome boy is getting along well with his teachers now.
| A．It; that | B．What; how | C．It; how | D．What; that |
Keep on trying, ______you’ll succeed ___________
| A．and; on time | B．or; at one time | C．and; in time | D．or; all the time |