1．She expanded (扩大) her store by adding a second room.
2．The actor gave a superb(出色的，卓越的) performance.
3．The severe(严格的) teacher has gone abroad；you can breathe freely again.
4．The restrictions(限制) on the use of the playground are：no fighting，no damaging property.
5．The date of the ship’s arrival is uncertain(不确定的)．
