The police still haven’t found the lost child, but they’re doing all they .（2011四川卷）
| A．can |
| B．may |
| C．must |
| D．should |
Though ____a difficult and even dangerous place , Vietnam is now a friendly destination that welcomes visitors from all over the world _______.
| A．considered; visiting | B．considered; to visit |
| C．considering ; visiting | D．considering; to visit |
“___________,” the soldiers screamed loudly, who held a gun in his hands, “or I will shoot again.”
| A．Stopped there | B．Stopping there |
| C．To stop there | D．Stop there |
Science is more than a collection of unrelated facts; to be meaningful and valuable,________ must be arranged to show generalized character.
| A．which | B．those | C．it | D．they |
If you want to live a happy life, you’d better learn to accept life _____it is..
| A．as | B．that | C．which | D．where |
The subway was crowded with passengers going home from market, most of ________carrying heavy bags and baskets full of fruits and vegetables they had bought there.
| A．whom | B．them | C．who | D．which |