The room ___________. It’s a real mess.
A. must be cleaned up
B. must cleaned up
C. must clean up

----Doctors, it seems that you like to work with animals.
----Yes, I think animals should ______ as our friends.

All the information _____ writing the report.

—Many tourists ________to the Great Wall every year.
—Yes, that’s true.

Old people should ________politely.

—Who ________ for the match?    —Sam and Ben.

Nick _______ a job in a bank, but to our surprise, he didn’t take it.

Don’t  put off today’s work for tomorrow. I mean , today’s work _____today.

May we leave the classroom now? No, you _____. You_____ to leave until the bell rings.

You can________the cake_______ten pieces.