The plane _______ at 7：00 p.m.，so I have to be at the airport by 6：40 at the latest.
| A．has left | B．would leave | C．will have left | D．leaves |
It is known to all that ________ People’s Republic of China is ________ biggest developing country in the world.
| A．the; / | B．/; the | C．the; the | D．/; / |
No one has _____ been able to trace the author of the poem.
| A．still | B．yet | C．already | D．just |
The ship was _____ in a storm off Jamaica.
| A．drowned | B．sunk | C．wrecked | D．submitted |
She was afraid that unless the train speeded up she would lose her _____ to Scotland.
| A．ticket | B．place | C．seat | D．connection |
Henry's news report covering the conference was so _____ that nothing had been omitted.
| A．understanding | B．comprehensible |
| C．comprehensive | D．understandable |