【正文】
is_________pen? —It 39。 can_________the letters from Aa to Zz. 39。( 3)特指世上獨一無二的事物,或某一范圍內(nèi)唯一的事物。s ...— What color is it? —It39。s a key. A: Spell it please. B: KEY. A: What color is it? B: It39。Language points can say my 。s black. 4.“不明飛行物 ”的英文縮寫是 _________。( ) ( ) ( ) 3. (