Every minute _____ spoken English.

How amazing it is that astronauts are exploring outer space!—It’s a challenge, I guess, ______ man against nature

You should ____ for a few nights.

Mr. Li, I can’t understand everything in class.—Don’t worry! I’ll ________ the main points at theend.

Without sleeves, the scars on his arms were clearly ____________. We all pretended I couldn’t see them.