题目内容
So little ________ about mathematics that the lecture was completely beyond me.
A.I know
B.I knew
C.do I know
D.did I know
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题目内容
So little ________ about mathematics that the lecture was completely beyond me.
A.I know
B.I knew
C.do I know
D.did I know
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||