1. (2020·哈尔滨) Forty students in Class One, Grade Nine are fond of reading novels written in English. Different students like reading different novels. According to the form below, ________ students like reading novels written by British writers.

The name of the novel	Treasure Island	The Old man and the sea	Oliver Twist	Tom Sawyer
The writer's nationality	British	American	British	American
Percentage（百分比）	25%	40%	20%	15%