4.

（ ）53.Dan is interested in taking wildlife photographs and enjoys the kind of programme which gives him a chance to see a professional photographer at work.

28. I have heard a lot of good things about you ______ I came back from abroad.

48. Any worn clothing or ______ will produce bacteria used bath towel

29. ______ is known to everybody, the moon travels round the earth once every month.

（ ）13. The products of company are sold only at home.

7.

（ ）54.Gina is a music teacher. Although she prefers classical music, she likes to follow the kind of music that interests the teenagers she teaches.

22. Not until the motorbike looked almost new ______ repairing and cleaning it.

35. Learning a language is about_____,so in order to grasp a language,it‘s wise to study on a daily basis.

25. I keep the picture where I can see it every day, _____ reminds me of the days in my hometown.

46.The ______ of bacteria causes body odor.