Don’t make the students _______ this or that . They are busy.
At least 300 million people are using QQ by Ma Huateng to chat online.
— Do you need an apple or a pear?— , I really don’t mind.
— Peter, you got to school by taxi?—Oh, I take a taxi to school, but my bike needs repairing today.
If people have problems, they should keep them to and ask for help.
I can’t see anything in the room. Please help me the lights.