Work harder, _______ you will get more grades in the coming exam.
The custom________sending birthday cards began in the 19th century.
People in China________when they meet for the first time.
—What do you think of his talk on the Information Technology?—Oh,very good,It’s worth________.
—It’s too hot today.—Yes.Why don’t you________your jacket?A.put onB.put upC.take offD take after
I didn’t finish my homework.My teacher got mad with me.