The symbol of Halloween is （）.
A. a pumpkin
B. a candle
C. laughter
D. money
According to the text, children collect money on Halloween to （）.
A. buy strange and frightening costumes
B. buy themselves candy from the neighbors
C. help UNICEF hold an international meeting
D. help poor children throughout the world
The purpose of the "tank test" is to find out （）.
A. how much air passengers need to breathe at certain altitudes
B. how much air can be pumped into the plane
C. what would happen if the plane crashed in the water
D. if there are any weak parts in the plane that would burst under pressure
The best title for this passage is （）.
A. Dolphins
B. Fish
C. Mammals
D. Cows
微信支付 
支付宝支付