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. A. a B. / C. the D . an 9. – How do you like your English teacher ? He is great . We all love him . We _________ friends since three years ago . A. were B. have made C . have been D. have bee 10. _________ do you play puter games every week ? About two hours . A . How often B. How much C. How soon D. How long 11. – Do you know when Edison invented _______ light ? Sorry , I don’t know . A. the B. a C. an D / 12. _______ away this dirty shirt and bring me a clean one . A. Pick B. Bring C. Carry D. Take 13. Jack does his homework _______ Mary . So they both always get good grades in the exams. A. so careful as B. as carefully as C. carefully as D. as careful as 14. If you still have any other questions , please _______ you hands . A. put up B. put down C. put on 15. – ______ are you