Lisa doesn’t know ______ she and her friends can do to help the little boy ______ parents have left their hometown for making money.
We must protect animals, they arefriends.
---I can’t work out the math problem, what should I do? ---You can turn to the teacher.
The best gift in the world may be not expensive, but must be full of love.
You are supposed to type quickly when talking with others on QQ.
I will call you as soon as I arrive in Guilin.