【正文】
it’s in Beijing than in Guangzhou. ? A. hotter B. cold C. colder ? ( ) tiger is than a dog. ? A. shorter B. heavier ? ( ) is pla in the solar system. ? A. biggest B. bigger C. the biggest ? ( ) is the ? ? A. slow B. faster C. cheapest 9~11課的單詞。 ? 例: beautiful: more beautif