小题1:He _______ ever ________ (be) to the amusement park several times. 小题2: I’m sorry I didn’t finish ___________ (write) my composition. 小题3:I have been ________ (skate) for two hours. 小题4:________ you ________ (teach) us computer science next year. 小题5:I went there last year and _________ (fall) in love with it. 小题6:They ___________ (fly) to the moon in ten years. 小题7: I will go to the water park if it __________ (not rain) tomorrow. 小题8:When Mr. Cook got home, his son ___________ (listen) to the radio. 小题9:The old man makes a living by ________ (sell) vegetables. 小题10:The box is too heavy. I’m not strong enough _________ (carry) it.