单项选择题
The Federal Government and the states governments are supposed to （）each other.
A.guide B.control C.keep independence from
单项选择题 Hawaii is in the （）Ocean.
单项选择题 The members in the Senate must be at least （）years old and those in the Representative （）years old.
单项选择题 The highest mountain in the U.S. is Mount （）
