—I really like eating potato chips.Do you know ________they were invented?
—Actually,they were invented by mistake.
A.why B.when C.how D.whether
—________we hold a graduation party next Saturday?
—All right.That's a good idea.
A.May B.Must C.Will D.Shall
—Mike,take away your things. They ________ lot of space,
—OK. I will do it at once.
A.take off B.put out C.take up D.put away
—We________for school in ten minutes, Have you packed your school things yet, son?
—Of course,Mom.
A.leave B.have left C.will leave D.were leaving
Jack's good at dealing with all kinds oi difficult things, so I'm sure of his ________ to do the work well.
A.ability B.task C.method D.activity
—Sorry,Tony,I'm afraid that I can't go to your birthday party tomorrow.
— ________.
A.It's hard to say. B.That's all right. C.Is that so? D.What a pity!
