____waiter came up to us andsaid,"You are welcome"

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

There are a group of people over there. What do you think ________

Alice lost her new bike. She was sad. —Let’s go and .

You have to be a fairly good speaker to _____ listeners’ interest for over an hour. [ ]