In the Spring Festival, Jonny sent each of his classmates a card with best wishes, but he received ________.
38. Donkeys and camels are still widely used in some parts of the world _____ of burden.
39. As you make your ____, so you must lie on it. (prov.)
40. --- What did you have for supper, Jack?--- I had some _____.cow B. ox C. bull D. Beef
41. If you don’t advance, you would be behind _____.
42. Which of the following groups is meat? _____