He finish his homework yesterday, but he couldn't find it anywhere.
| A．has |
| B．had |
| C．did |
| D．does |
She _____ your birthday party, but she had to look after her mother in hospital．
| A．should attend | B．ought to have attended |
| C．can have attended | D．must have attended |
—Conductor, can I get to Market Street on this train?
—Of course．The train is leaving．_____, please．
| A．Step lively | B．Mind your step | C．Look out | D．Walk slowly |
____ is clear ____ the Diaoyu islands have been China's inherent territory （固有领土）both from historical and legal aspects since ancient times．
| A．That; that | B．This; this | C．It; that | D．What; what |
—How was the journey?
—Tiring! I caught the train at the last second but all the seats _____．I stood all the way．
| A．would occupy | B．had occupied |
| C．had been occupied | D．would be occupied |
I was standing behind a tall man．When the man looked _____, I recognized him at once．
| A．up | B．down | C．forward | D．about |