19.There are some health problems that, when ______ in time, can become bigger ones later on. 　　　
(A)not treated
(B)not being treated 　　　
(C)not to be treated
(D)not have been treated

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統計： A(0), B(0), C(0), D(1), E(0) #987649

詳解 (共 1 筆)

#1202035

考察插入语状语分句when not treated in time省略的用法，可以还原为状语分句when they are not treated in time，当然可以认为是考查过去分词用法。

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