You may use room as you like ____ you clean it up afterwards.
| A．so far as | B．so long as | C．in case | D．even if |
Cheer up! Everyone may have periods in their liveseverything seems tough．
| A．when | B．where | C．which | D．that |
Though the suspect refused to admit that he had stolen the precious diamond at first．heand admitted everything when he was shown the videotape．
| A．broke up | B．broke away | C．broke down | D．broke into |
Encourage your children to try new things，but try not tothem too hard．
| A．draw | B．strike | C．rush | D．push |
Nearly half a million immigrants，many of them English—speaking，in the country during the last quarter of the nineteenth century．
| A．have arrived | B．had arrived |
| C．arrived | D．have been arriving |
In spite of allhas been said，quite a lot of people are still uncertain about the prices of housing in China．
| A．that | B．what | C．which | D．as |