18. 去游泳

17. 去买东西

16. 去钓鱼

15. The police went _____ very room of the building.

14. The bullet(子弹)went _____ the wall.

13. They went _____ their lessons together at night.

12. The mechanic(技师)went _____ the engine but found nothing wrong.

11. Put more wood on the fire, otherwise it will go _____.

10. They went _____　 _____　 their open-air performance in spite of the rain.

9. After he had given an account (说明)of the difficulties he went _____

　　 to suggest ways of overcoming them.