Look! That man looks like Mr. Green.-It ______ be him, for he ______ America for a month.

When did you get home last night—It was almost midnight________we arrived home.

I wonder ________ so many people are crazy about Gangnam Style.—It’s good for bodybuilding, and it brings people a lot of fun, you know.

Our Chinese teacher, Miss Liu, is pretty strict _______us.

Our hall is ＿＿＿＿theirs