Let`s play basketball,我们老师说用shall we?今天从李阳疯狂英语来了个 Let`s play

Let`s play basketball,我们老师说用shall we?今天从李阳疯狂英语来了个外教,他却说用,sha let's play basketball ,shall we ?怎么变成否定句? Let us play basketball,will you?的Let's play basketball,shall let‘s play ___ basketball let's play basketball!用great来回答 let`s play basketball ,shall you?改成------ ------ playing bas Let's play basketball.(用fun作答) let’s play chess,shall we?为什么用shall we问? Let's go out to play football ,shall we? Let's play table tennis together,shall we? 1.-Let's go out to play football ,shall we? Let's play table tennis ___ Tuesday morning,shall we