The Input Hypothesis was put forward by
A. [A] Chomsky.
B. [B] Sapir.
C. [C] Krashen.
D. [D] Hymes.
Which of the following is the probable title of the passage
A. The British Imperial System.
B. The Customary System.
C. The International System of Units.
D. The Metric System.
教学工作的中心环节是( )
A. 上课
B. 备课
C. 课外辅导
D. 编写教案
--Do you know () the price of meals on the railway has increased recently--Yes, by 15%.
A. how long
B. how often
C. how much
D. how soon
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