Judging from what has happened here, it’s high time that we _______effective measures to prevent this.

Mr. Smith knows _______ about Spring Festival.

Adrian’s hard work _________. He graduated withgood grades and got into a top high school.

You ________ this,Mother. It’s no concern of yours.[ ]

The temperature will fall sharply the day after tomorrow, when a snowstorm ______ to strike our area