Complete the sentences

Complete the sentences.

16. This box is too heavy for Tom and me. Could you help ___________to lift it, please?
17. What beautiful roses! Who gave ______________to you?
18. My soup is tasteless. Can you pass ______________the salt, please?
19. Have you seen my keys? I can't find ______________anywhere.
20. There is a new girl in your class, do you know ______________?