题目内容

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Jenny, your paintings are wonderful. I _____ you learned to paint.
A．hadn’t knownB．didn’t knowC．won’t knowD．haven’t known
B
考查时态。句意：珍妮，你的绘画真不错啊！我不知道你学会了绘画。结合语境可知下文描述的是过去的动作，故用过去时态。选B。
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