Is that Jack speaking?—Sorry, he _______ in. He _______ back in half an hour.

I’ve worked in this school _ twenty years.[ ]

Tom does well in all his subjects, but he never shows off.—I agree, He is very .

Look, those great notebooks are ______in our school store. Let’s have a look.—OK. Anybody can ______ the prices.[ ]

Is Jack on the phone?—- Yes, he is.