例子: — Can you play cards? — Yes, I can. / No, I can't. 1. — Can you ________ a bike (骑自行车)? — Yes, I ________. 2.— Can a cat ________ (飞)? — No, it ________. 3. — Can you ________ (看见) a dog? — Yes, I ________. 4. — ________ ________ speak (说) English? — No, I ________. 5 — Can you ________ (做,干) this? — ________, I can.