Noonecanwalkthewirewithoutabitoffearunless

來源:國語幫 2.83W

問題詳情:

Noonecanwalkthewirewithoutabitoffearunless

No one can walk the wire without a bit of fear unless ________very young.

A.having been trained  B.trained

C.to be trained  D.being trained

【回答】

B [此句表示被動動作。]

知識點:非謂語動詞

題型:選擇題

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