单项选择题
At the end of the passage the author suggests that().
A. it is impossible for life to exist on other planets. B. earthlike life could only exist on a few planets. C. life could exist on only one planet in a million. D. life could exist on a great number of planets.
单项选择题 What is your goal in life（）.
单项选择题 The term "New Deal" applies to the program of reform and recovery initiated by President Franklin D. Roosevelt.
单项选择题 About one million Americans are diagnosed annually with skin cancer.
