Giúp mk với 
Read the following passage and mark the letter A, B, Cor D to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30. Scientists and doctors say that about 55 million Americans are too fat. Why is this? One (30) is the kind of food Americans eat. Many Americans like "fast foods". These foods (such as hamburgers and ice-cream) often have fattening things in them. (31) cause is the way Americans eat. _extra fat on They often eat little snacks between regular meals. These extra foods (32) the body. A third cause is that they do not take enough exercise. Americans like driving every where in stead of walking. They often have( 33) to do a lot of the work for them. Some Americans are also too heavy because of health problems. But for most of those 55 million people, the problem is the American Lifestyle.
30. A. way B. source C. cause D. ground
31. A. Other B. Another C. The other D. Others
32 A. add B. put C. include D. make
33 A equipment B. machines C. vehicles D. tools