A-A+
It was (him) who did all the work (on) the inv
问题详情
It was (him) who did all the work (on) the invention, but somebody (else) got (all the credit).
A．him
B．on
C．else
D．all the credit请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
解析：这是强调句型。本句强调主语，所以被强调部分应用主格形式。改“him”为“he”。
