13. We often (watch)……...........…….News in the evening. 14. My Mom used (walk)……………..to work when he was young. 15. The letters (send)……..........…..every day. 16. When I was a child, I used …….............… (dream) of being an astronaut. 17. I (learn).............................................English for 5 years. 18. David and his father (visit)……..........…..the Temple of Literature last week. 19. I (see)………................…….Gone With The Wind for 10 years. 20. My grandpa (not/ use)………............. ..…..ride when he was a child. When you are in Singapore, you can go about (21)....…taxi,by bus,or by underground. I myself prefer the underground because it is fast, easy and cheap. There are (22)…... buses and taxis in Singapore and one cannot drive along the road (23)....…and without many stops, especially on Monday morning. The underground is therefore usually quicker than taxis or buses. If you do not know Singapore very well, it is difficult (24)….... the bus you want. You can take the taxi, but it is more expensive than the indergroup or a bus. On the underground, you find good maps that (25) …....you the names of the stations and show you how to get to them, so that it is easy to find your way. 21. A. by B. in C. at D. on 22. A. few B. a lot C. many D. some 23. A. quick B. quickly C. quicker D. quickest 24. A. find B. found C. finding D. to find 25. A. tell B. told C. tells D. telling Gúp mik zới!