Mr. Fotheringay struggled to get to his feet ______ vain and remained on all fours ______ on.
A.at,holding B.in,holding C.at,held D.in,held正确答案B
Mr. Fotheringay struggled to get to his feet ______ vain and remained on all fours ______ on.
A.at,holding B.in,holding C.at,held D.in,held正确答案B
