------ Kate and Lucy are twins.
------ Oh, I ______ why they looked so alike.
A．wonderB．have wondered
C．was wonderingD．had wondered
C
本題考查時態(tài)。從句中l(wèi)ooked可判斷整體時態(tài)用過去時，根據(jù)句意“過去一直奇怪”可知用過去進行時。句意：——Kate和Lucy是雙胞胎。——哦，我一直奇怪他們?yōu)槭裁纯雌饋砣绱说南嘞瘛?/div>
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