51.　　 I ______ staying at home ______ going to the cinema.

50.　　 Lucy prefers English _______ French.

49.　　 Let’s do ________ shopping first.

48.　　 We are ready _______ the final examination.

47.　　 I will call you ________ tomorrow.

46.　　 Mother told me to go shopping ______ her.

45.　　 English is very interesting. We are all interested _______ it.

44.　　 They are busy ______ their work now.

43.　　 I came to say good-bye _______ you.

42.　　 He went on ______ his work after a short rest.