来自刘买利的问题
【Annacannotswim.shethinksitis()A.difficulttooB.toodifficultC.muchdifficult】
Annacannotswim.shethinksitis()A.difficulttooB.toodifficultC.muchdifficult


【Annacannotswim.shethinksitis()A.difficulttooB.toodifficultC.muchdifficult】
Annacannotswim.shethinksitis()A.difficulttooB.toodifficultC.muchdifficult
B.toodifficult