We’ll go to Qing Yuan Mountain tomorrow. Why _____ join us? —That’s a good idea. [ ]

Did you see the CCTV news on TV last night?—Yes, ______ children had a good festival on Children’s Day.

Can I borrow your dictionary? — Sorry, I don’t have __________.

Faced with a bill for ＄

This is Jim Green. You can call him ______.