----Must I clean the window now?     
---- No, you _____.

You ____ face trouble if you let out the secret. We won’t have any of that.

Only when you have obtained enough data______ come to a sound conclusion.

—Who____ it be that is knocking at the door?  
—It ____ be Father, but I’m not sure.

Thank you for all your hard work last week. I don’t think we________it without you.

-----The room is so dirty. ________we clean it now?
-----Ok.

You should pay a lot of attention to children’s ideas; sometimes they ___be really creative.

The winner of the race is tall and thin; he ___be my friend, Mike, who is short and fat.

According to the newly-made traffic regulation, whoever drives through red light ________ be fined at least 200 dollars.

I lost my keys, otherwise I ________ comfortably in bed now.