Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 129 of the first 138 customers have not received a star on their receipts. What is the experimental probability of winning a free gallon of milk?
A. 3 over 46
B. 43 over 46
C. 11 over 138
D. 43 over 138
...that's not helpful
Identify the sentence type:
While he forgot his work, Heung Bu took the bird home, and he caught some flies for the swallow to eat.