Apple juice tastes___________.
My sister ______ text messages to me on the mobile phone,but now she ___ e-mails on QQ.
We were told that Mr Green _____ the office for a few minutes when we arrived.
Your idea is considered to be _____ great value _____him.
Please don’t stand up in class _____ you ______.
-----Could you tell me ______ to go to Hannan by air? -----Just a minute, please. Let me have a look.