——________ you tell me how to write it in English?——I'm sorry, I can't.
A:Can
B:Must
C:May
D:Need
①酸性:HClO4>HBrO4>HIO4
②离子还原性:S2﹣>Cl﹣>Br﹣>I﹣
③沸点:HF>HCl>HBr>HI
④金属性:K>Na>Mg>Al
⑤气态氢化物稳定性:HF>HCl>H2S
⑥半径:O2﹣>Na+>Na>Cl.
小平说:我的秘密我做主,父母不要去管它小丽说:亲子冲突很难免,巧妙沟通化解它