EX1: Chọn đáp án đúng để điền vào chỗ trống (chú ý: ký hiệu “x” có nghĩa là không cần mạo từ) 1. We are looking for .............. place to spend ................ night. A. the/the B. a/the C. a/a D. the/a 2. Please turn off ................ lights when you leave ................ room. A. the/the B. a/a C. the/a D. a/the 3. We are looking for people with ................experience. A. the B. a C. an D. x 4. Would you pass me ................ salt, please? A. a B. the C. an D. x 5. Can you show me ................way to ................station? A. the/the B. a/a C. the/a D. a/the 6. She has read ................interesting book. A. a B. an C. the D. x 7. You’ll get ................shock if you touch ................ live wire with that screwdriver. A. an/the B. x/the C. a/a D. an/the 8. Mr. Smith is ................ old customer and ................ honest man. A. An/the B. the/an C. an/an D. the/the 9. ................ youngest boy has just started going to ................ school. A. a/x B. x/the C. an/x D. the/x 10. Do you go to ................ prison to visit him? A. the B. a C. x D. an 11. ................eldest boy is at ................ college. A. a/the B. the/x C. x/ a D. an/x 12. Are you going away next week? No, ................ week after next. A. an B. a C. the D. x 13. Would you like to hear ................ story about ................ English scientist? A. an/the B. the/the C. a/the D. a/ an 14. There’ll always be a conflict between ................ old and ................ young. A. the/the B. an/a C. an/the D. the/a 15. There was ................ collision at ................ corner. A. the/a B. an/the C. a/the D. the/the 16. My mother thinks that this is ................ expensive shop. A. the B. an C. a D. x 17. Like many women, she loves ................ parties and ................gifts. A. the/ a B. a/the C. a/a D. x/x 18. She works seven days ................ week. A. a B. the C. an D. x 19. My mother goes to work in ................ morning. A. a B. x C. the D. an 20. I am on night duty. When you go to ................ bed, I go to ................ work. A. a/x B. a/the C. the/x D. x/x