这些天,汤姆在照顾他的妈妈.
Tom is his mother these days.
I like reading because it can (增长)our knowledge.
Skating seems to be Mary's only (爱好)in her life.
I'm (自豪的) to say that we have made the right decision.
My aunt has gone (某处)out of town to buy some flowers.
The old engineer made a contribution to developing the (西部的)part of China.