How many English words do you think I should know?—As many as you ______. Then you will find reading quite easy.

Mr Wang’s never been to Canada , has he?—________. He went there on business last week.

An old friend of my sister’s always helps my brother andwithEnglish.

I can English, but I can’t it in English.

What do you think of the report about the air pollution on TV last night?—I think the situation is so that we should take action to protect the environment.