I (发送) an e﹣mail to my pen pal in America once a week.
It's good manners to keep your (声音) down in public.
The restaurant offers different kinds of seafood,which (品尝)good.
I don't think money will (解决)all my problems.
Mary found great fun working in the small (花园).
You shouldn't leave your child in the house (单独).