Don’t turn on the radio __________ your mother allows you.
—Excuse me, sir! Could you tell me the way to Tianfu Suare?—Sorry, but I’m a stranger here as well.—_____
Mike, I really appreciate your _____, without which I would have failed the interview.
Why are you still working on this project? It’s 4 o’clock in the afternoon and you’re supposed _____ it by noon.
I always wanted to do the job which I’d seen trained _____.
It is not always easy for the public to see _____ use a new invention can be of to human life.