冀教版(三起)四下lesson5howmanybooksdoihave課件1(留存版)
【正文】 t eight books on the eight books . How many books are there on the desk? 11 eleven 12 twelve 13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nieen 20 twenty 30 thirty 40 forty 50 fifty 60 sixty 70 seventy
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