单项选择题A.main B.few C. poor D.abundant
单项选择题A. numbers B.opinions C.aspects D.directions
单项选择题A. explore B.clean C.measure D.cover
单项选择题The best title for the passage is.
单项选择题Which of the following statements is not true
单项选择题What does the underlined word“ them” in the passage refer to
单项选择题What will probably be talked about following the last paragraph
单项选择题A. water B. food C.energy D.information
单项选择题The following are idioms except.
单项选择题The second paragraph of the passage is mainly about.