As we can see, the work can’t be finished by only one person, so let’s ________．


  1. A.
    take a turn
  2. B.
    by turns
  3. C.
    in turn
  4. D.
    take turns
D
解析：
take turns輪流；
B、C項(xiàng)都是介詞短語。
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D
Anyone for rocket salad? The Chinese are now growing huge vegetables from seeds they sent into space.
If you are the type who worries about the air miles travelled by fruits and vegetables, these beauties aren’t for you. It's because they have travelled a little further than most.
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