... board: T. reads: 6, 8, 9, 20 , 13, 100, 4, 400, 900, 8, 20 , 22 13, 4, 900 25 , 45, 60 0. 400, 45, 18, 26 . - Ss choose 5 numbers from the board STT1 8 X 2 13 X3 400 X4 60 0 5 900 X 2. Pre-reading:Set ... th¸ng n¨m 20 06 Gi¸o viªn: TrÇn văn TuấnTrêng THCS Sinh Long – Nà Hang – Tuyên Quang Ngµy 22 th¸ng 10 n¨m 20 07Unit 4: Big or smallPeriod 20 th : Part A: Where is your school? – Ex 1 ,2. A- Objectives. ... Keys: I - 1.C 2. D 3. A 4. AI I- 5.an 6. are 7. do 8. benchesIII-9. 11- eleven 12- twelve 17- seventeen 20 - twenty 32- thiry- two 10. 44- forty-four 51- fifty-one 88- eighty-eight 96- ninty- six...