Jim is a ____ boy, and today is his _____ birthday.

Ann often helps her mother _____ the washing and cooking.[ ]

Do you think this book is ______difficult for children to read ？

Why are you standing there, Kangkang? —I can’t see the blackboard clearly. Two tall boys are sitting______me. [ ]

He asked Tom, “Have you finished your homework？”－He asked Tom　　　　.