The narrator wanted to exchange the black shoes because of their:

For each question in this part, choose the appropriate place to insert the missing word in order to produce a meaningful and grammatically correct sentence.   她是谁    A   ？请    B   你给    C    我介绍    D   。 一下

  What is the second speaker going to do?

What is the purpose of this message?

小张吃晚饭以前在商店工作。

  How would you interpret the second speaker’s response?  

  What does the second speaker think of the first speaker’s shirt?

When did 王朋 call 李友?

In which scenario would the use of medical terminology to explain a diagnosis be inappropriate?

When households’ marginal propensity to consume (MPC) increases, the size of the spending multiplier: