答案与注释:1.(a)是正确答案。make the bed:整理床铺。2.(b)是正确答案。set the table:指饭前将碗筷等餐具摆放在饭桌上。3.(c)是正确答案。a person with agreen thumb:是指擅长养花种草的人。4.(a)是正确答案。walk-up:无电梯的高层建筑。5.(b)是正确答案。on mortgage:以抵押方式购买。 Answers and Notes: 1.(a) is the correct answer. Make the bed: Make a bed. 2.(b) is the correct answer. Set the table: refers to tableware and other utensils placed on the table before dinner. 3.(c) is the correct answer. a person with agreen thumb: refers to someone who is good at growing flowers and plants. 4.(a) is the correct answer. Walk-up: High-rise building without elevator. 5.(b) is the correct answer. On mortgage: Purchased by mortgage.