| Lesson 20
Video and textListening and speaking
 Vocabulary
 Grammar exercises
 
 |  | Question: Your friend is carrying two large suitcases. Tell her 
              that it is not possible for her to walk upstairs with them, and 
              offer to help.
 
 
  Hint 
                1   Use V 着 to describe what she will be doing as she walks upstairs 
  Hint 2 
  Answer 
  Comments 
  Index 
 
 
 
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