单选1道（may）-Can children swim in that pool?-Yes,however,at no
单选1道（may）
-Can children swim in that pool?
-Yes,however,at no time _____ they do so alone.
a may
b should
a为什么不可?may可以表示允许啊.
-Can children swim in that pool?
-Yes,however,at no time _____ they do so alone.
a may
b should
a为什么不可?may可以表示允许啊.
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can children swim in this pool?
1年前2个回答
你能帮帮他们吗