With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is _______ all the others.
| A．as a good student as | B．as a student good as |
| C．as good a student as | D．as good as a student |
. Leave your key with a neighbor __________ you lock yourself out one day.
| A．ever since | B．even if |
| C．soon after | D．in case |
The news about the terrible flood there greatly discouraged __________ there for sightseeing.
| A．us from going | B．us to go | C．our going | D．our to go |
He's unlucky, and he's always suffering____________ luck one after another.
| A．a sick | B．an ill | C．sick | D．ill |
If you ____________ stop smoking, you can only expect to have a bad cough.
| A．won’t | B．would not | C．do not | D．can not |
--Paul, I'd like to have a talk with you at tea break.
-- __________ Have what with me?
| A．Yes, please. | B．Sorry? | C．Thanks. | D．You're welcome. |