1、This is Mary.
This is_Mary___ ___speaking__.
2、She needs to get plenty of rest.
She __has___ __to___get__a___ __lot___of rest.
3、Who's calling,please?
Who's__that___,please?
4、What's wrong with her?
What's__the___ _matter____with her?
5、Miss Green is busy now.
Miss Green__isn't___ ___free__now.