题目内容
In the study, I found my son ______ at a desk, with his attention ______ on a book.
A. sitting; fixing B. sit; fixed C. sitting; to be fixed D. seated; fixed
B
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题目内容
In the study, I found my son ______ at a desk, with his attention ______ on a book.
A. sitting; fixing B. sit; fixed C. sitting; to be fixed D. seated; fixed
B