单选题Men differ from animals ______ they can think and speak.
单选题The scientists have made an _______study of the virus that causes the disease.
单选题Which of the following is most appropriate for developing a learner's integrated language skills?
单选题Which of following is the most controlled activity?
单选题To make sure you get into the right ________while driving on a motorway, you must notice the road signs.
单选题请阅读Passage 1，完成小题。Passage 1Of all the changes that have taken place in English-language newspapers during the past quarter-century,perhaps the most far-reaching has been the inexorable decline in the
单选题Which of the following refers to a process in which a teacher asks hisher students to analyzing sentences in a passage and then work out their structures?