Sally looks very happy. She ________ have got the first place in the 200metre race.[ ]

Sandy, please don’t tell anybody about our secret, OK— _______.

I wonder when they ________ for Beijing. I willgo to the train station to see them off when they _______.

You should take off your shoes before you ＿＿＿ the new flat.

We haven’t been to the Great Wall for ages. — No, I don’t remember how many years ago _______ I last visited it.