单项选择题
They have done（）work these days.
A.too much B.much too C.too many D.many too
单项选择题 They all go outing on such a warm spring day（）Mark. He is busy with his lessons now.
单项选择题 They（）each other for more than twenty years.
单项选择题 These desks and chairs（）to the children in the mountain villages next week.
