. –Mary, is this ______ umbrella?--No, it’s not mine. It is _______.
----_______ go to the cinema together with me? ---- Good idea!
Wearing red can make ______ easier for us to take action.
It was silly ____ you to give up ____ things that we all wanted.
—What a nice watch it is! —Yes. It’s _________ one of all.
-----The classroom is _________ clean _______ it was yesterday. ------Sorry, I forgot to clean it.