Is this your pen变成肯定句和否定句
问题描述:
Is this your pen变成肯定句和否定句
答
肯定句 This is your pen.
否定句 This is not your pen.
(在be动词后直接加not)
答
肯This is your pen
否This isn't your pen
答
肯定句 This is your pen.
否定句 This is not your pen.