This book _______ be Tom’s. Look! His name is on the cover.

Not until quite recently that language is closely related to culture．

They use the same senses as we do and their feet and hands are similar toours,　　　chimpanzees still have opposable toes and can grasp things with their feet.

_____ is very kind _____ you to help me. [ ]

The meat is _____expensive and eating _____meat is bad for your health