The following dialog is for questions 21 to 23.Vido : Which bags are you going to buy?
Dian : The sling bag.
Vido : Why don't you buy the backpack? It can
load more items than the sling bag.
Dian : Yeah! But it is bigger than the sling bag.
I have a small body. The backpack will not
suit me.
Vido : You can choose the smaller one. When you
carry items in a backpack, your body can
hold the burden in balance.
Dian : You are right. Please help me find one
which suits me.
Vido : How about this one? It's small and has
several compartments,
Dian : All right. That's nice.
21. What are Vido and Dian doing?
A. Purchasing a bag
Trying backpacks
C. Comparing several bags
D. Choosing a bag for a gift
22. What does Dian finally prefer?
A. A big sling bag
B. A big backpack
A small backpack
D. A small sling bag
23. The backpack is for the body than the
sling bag
A. better
B.
C. bigger
worse
D. smaller​