--- You needn’t take an umbrella. It isn’t going to rain.--- Well, I don’t know. It ______do.

—Will you read me a story, Mummy?—OK. You ________ have one if you go to bed as soon as possible.

According to the newly-made traffic regulation, whoever drives through red light      be fined at least 200 dollars．

I’m impressed with his determination. When he had a problem to solve, he  _____ work at it until he found an answer.

-----Where is my key? I remember I put it here yesterday.--------You ______  it in the wrong place.