Is

—You can see Mr. Smith if there is a sign“_____”on the  door of his shop.—Thanks.

He is ____a new coat today.

Do be careful! The man is hard ________.

The girl is warm-hearted. She _____ others.

--Mike suggests a camping trip this weekend. I think it is a good idea.   -- __________

—What day is it today, Saturday or Sunday?—____.It's Monday.

It is well known that teaching is a job,　　　　enough patience.

–Is there anywhere you’d like to go this summer vocation?-________

________________________?—My brother is an engineer.

—Can I come this evening or tomorrow morning?—Oh, _____is  OK. I'm free today and tomorrow.