Let’s look at pictures ______ Beijing Opera. [ ]

Jim’s mother was shopping ________ her mobile phone rang.

Will you go to Mary’s birthday party?—No, ____ invited, I can’t go to it because I’ll be too busy then.

I don’t know when Kitty ___________ tomorrow, and please give this message to her when she _________________.

My bike is broken. May I go ______ yours?—- Sorry, mine ________ broken down.