---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 police ________ Tom of stealing and the accused was afraid to meet the accuser.
| A．accused | B．charged | C．robbed | D．informed |
He found them _____ at a table ____ chess.
| A．sat; to play | B．sitting; to play | C．seated; playing | D．seat; playing |
More and more high－rise buildings have been built in big cities space.
| A．in search of | B．in place of | C．for lack of | D．for fear of |
He is _____ careless a student that he often _____ some letters while writing.
| A．such; leaves on | B．so; leaves off | C．so; leaves out | D．such; leaves out |
In my opinion, the most famous to tourists in the city is the wooden tower.
| A．attraction | B．impression | C．instruction | D．expression |