31. Marriage represents the lifelong ____ to a partner. * 1 điểm A. commitment B. family C. parenting D. personality 32. After an argument, she ____ and befriended with her classmate. * 1 điểm A. stood by B. dropped in C. descended on D. caved in 33. If you want to exercise and sweat, give the body the water that it has to shed in ____. * 1 điểm A. sweat B. sweating C. sweated D. sweater 34. In under a minute, your _________ can pump blood to bring oxygen and nutrients to every cell in your body. * 1 điểm A. brain B. heart C. lungs D. vessels 35. My father has dark brown eyes and my friends say I am a chip off the old ____. * 1 điểm A. tower B. building C. house D. block