He is hard-working, for every time I go to see him, he is ________ work.
A.out of
B.off
C.in
D.at
对258人提供帮助
根据句意应是“在工作”的意思,故排除其他选项。
He is hard-working, for every time I go to see him, he is ________ work.
A.out of
B.off
C.in
D.at
对258人提供帮助
根据句意应是“在工作”的意思,故排除其他选项。