20. Future applications of nanotechnology could include tiny molecular robots that _______.
(A) is swimming through your bloodstream and is fighting diseases
(B) swimming through your bloodstream and fighting diseases
(C) swim through your bloodstream and fight diseases
(D) your bloodstream were swum and disease were fought

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統計： A(26), B(76), C(302), D(29), E(0) #1280293

詳解 (共 1 筆)

#4877291

這題是考關係子句

前面的句子已經是完整的 S +V +O 的句型了，可以判斷後面的子句為關係子句，修飾先行詞tiny molecular robots

tiny molecular robots that swim through your bloodstream and fight diseases

減化後為：tiny molecular robots swimming through your bloodstream and fight diseases

(B)錯在題目多給了that

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