PRACTICE TEST 10- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân
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Mr. Jones is valuable for _______. A. he knows about history B. what does he know about history C. what he knows about history D. what knowing about history

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Mr. Jones is valuable for _______.

he knows about history

what does he know about history

what he knows about history

what knowing about history

Giải thích

Chọn đáp án C