_____ do you go to Beijing Happy Valley? —Once a year. [ ]

This isn’t _____book.________is on the desk.

In the United States, Father’s Day falls on ______ third Sunday in _____ June.

Li Mei is the student _________ handwriting is the best in our class.

There’s going to ______ a concert in the hall tonight. —Yes, and the last performance will be given by Wang Fei.