---What attracts people to California is its pleasant climate and relaxed lifestyle.
---This is each year a great number of people from all over the world try to to California.
A. how; immigrate
B. Why; immigrate
C. because; remove
D. why; remove
网友回答
A. how; immigrate
(答案→)B. Why; immigrate
C. because; remove
D. why; remove
解析：考察连词和动词。Immigrate 意为移居 ，remove迁移
句意为，--吸引人们到加州的是适宜的气候和放松的生活方式。----这就是为什么每年都有大量的人从世界各地移居到加州。