20. ________ doesn’t just tell us about fossil fuel pollution or the release of banned chemicals.
(A)What floats around in the air
(B)That floats around in the air
(C) It floats around in the air
(D)Those float around in the air

答案：登入後查看
統計： A(58), B(29), C(10), D(44), E(0) #1889771

詳解 (共 2 筆)

#4367027

What floats around in the air = the thing which around in the air

 
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