We are going to play basketball _____ Sunday.[ ]

There are _______ in the reading room, but many of those books aren’t _______ to read.

Millie is getting on well with her friends but she is a little selfish ______. [ ]

It’s necessary _______ us to keep our pets clean every day. [ ]

Not only the students but also the teacher ___ enjoying the film at 9 pm yesterday.