Students’ active performances in class will be the new normal ______ teachers give them more chances.

Listen! Can you hear someone

I’ll never forget our English teacher, _________ is a well-educated teacher, _________ we admire very much

For a moment nothing happened.Then ________ all shouting together.

Some people argue that using _____ nature to meet our own needs may spell disaster, unless we start to look around and understand how ______ clean environment benefits us all.