have to: obligatory, necessary, often describes obligations imposed on us by other people and authorities, don't have to: not obligatory, not necessary, must: rules, regulations, and obligations, often describes obligations that come internally, from ourselves, mustn't: prohibitions, can: to give permission, can't: refuse permission, should, shouldn't, ought to, had ('d) better: to give advice and recommendations, to ask for advice and recommendations,

5.2 Modals sorting

印刷
埋め込み

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

自動保存: を復元しますか?