--- ________?

--- He is a computer engineer.

--- How much does it ________ to fly from Beijing to Haikou one-way?

--- About 1000 yuan.

---______ are these shoes?

---They're 90 yuan a pair．

---Surfing is a new sport. Would you like to have a try?

---______.

---Aren't you going home now?

---No. I ______ back until I ______ all the fish.

---I hear that an old couple are traveling around China by bike.

---Oh, ________ long way on their bicycles! They are so great.