---How long has your brother been working in this factory?
---_____he dropped from school in 2010.
| A．When | B．Until | C．Since | D．Before |
The place ____ the bridge is supposed to be built should be _____ the cross-river traffic is the heaviest.
| A．which; where | B．at which; which | C．at which; where | D．which; in which |
He tried hard to keep calm in face of the policemen, but the sweat on his forehead _____ him _____.
| A．gave; away | B．turned; down | C．showed; out | D．shut; off |
______, this kind of disease can do great harm to people over there.
| A．Occurring there ycy | B．It occurs where it is |
| C．Where does it occur | D．Where it occurs |
–People should stop using their cars and start using public transport.
–______. The roads are too crowded as it is.
| A．All right. | B．Exactly | C．Go ahead | D．Fine |
On ____ news today, there were ______ reports of heavy snow in that area.
| A．the; the | B．the; 不填 | C．不填;不填 | D．不填; the |