D.
         My grandma is in her 70s. She is old but strong.She usually gets up at about 5:00 every morning.She cooks breakfast for my grandpa. Afterbreakfast, she goes out for recycling things. Sherecycles bottles, cans, newspapers, books, andcardboards. She sorts them after she gets home.By doing the recycling, she can earn about 3,000dollars a month.
         My grandparents grow vegetables in the yard.They never use chemicals on their vegetables.Sometimes Grandpa sells the vegetables at themarket. Many customers like to buy theirvegetables because they are harmless and notexpensive
 * recycle 回收 sort分類 earn賺grow vegetables 種菜 chemicals 農藥
【題組】48. How old is the writer’s grandma?
(A) 90
(B) 77
(C) 45
(D) 33