Must we find out the reason today – No, you_____.

Where’s Jenny— I’m not sure. She ______ in the school library.

It’s reported that the United States uses_______ energy as the whole of Europe.

I beg your pardon?- Your mind must have been __________ when I was speaking, wasn’t it?

It was ________I got home two hours later ________I realized I’d left my most important textbook behind.