单项选择题
Look, 25% off. The $2,500 camera is on sale today. （）
A.The camera if of high quality. B.That‘s very kind of you. C.My camera is out of order now. D.Yeah, a surprising bargain. I‘ll buy it.
单项选择题 Will you go on a picnic with us tomorrow?（）
单项选择题 How long have you worked in London? （）
单项选择题 I don't like the sports programs on Sundays. （）
