Choose the correct preposition to complete the following sentences

21. Lan apologized ________ breaking my phone.

A. to                           B. for                                  C. about                        D. on.

22. Don’t forget to turn ________ the TV before going to bed.

A. out                          B. on                                   C. off                            D. up.

23. I always think ______ you. I miss you very much.

A. about                      B. in                                    C. by                             D. with.

24. It is nice ________ you to help us with our housework,

A.to                            B. about                              C. for                            D. of.

25. The girl keeps _____ asking his mother about protecting the environment.

A. in                            B. of                                   C. on                             D. up.