ability (Present ), can, possibility, can, lack of ability, cannot, ability (Past), could, permission, can, request, Can you ....?, obligation, must, prohibition, mustn't, necessity, have to, lack of necessity, don't have to, give advice, should/ shouldn't

Alex Modals

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?