—Talking loudly in a library is impolite.—In fact, we should also  take care not to cough or sneeze loudly in public.

Patrick is interested in animals, so he enjoys    _ every Saturday working in an animal hospital.

.Some teenagers         to do some voluntary work during the school holidays..

Mr. Li is a ________ .He ______ us how to swim.

 ---- What’s in your hand, Linda? ----A new book about Mo Yan. I _____ it ____ my friend.