— Are you going to Beijing by air?— It’s fast, but expensive. So I’m not sure. I _____ take a train.
We are having a math lesson now, you must stop _________ music.
----___________shoes do you want to buy? ----Size 9.
Let me ______ you how you can_____________ my home.
I must _______ a book before I can ________ TV.
--- How ___________ your last weekend, Tony? --- It __________ very good.