When it comes to “empty-nest syndrome(综合症)”, parents are advised to _______regular contact with children through phone calls, emails, texts or video chats.
The moon is the earth .
—Have a good rest ; you need to your energy for the football match this afternoon . —Thanks a lot .
This is the book I bought yesterday , I spent 8 yuan .
Jack had traveled six miles across the Channel his engine failed and was forced to land on the sea .
so much electrical equipment , wood and paper in one place , there is a danger of fire .