It was really noisy in the workshop. Not until at the top of my voice to look at me.A.

问题补充：

It was really noisy in the workshop. Not until at the top of my voice to look at me.

A. did I shout; he turned

B. had I shouted; had he turned

C. did I shout; did he turn

D. had I shouted; he turns

答案：

(答案→)A. did I shout; he turned

B. had I shouted; had he turned

C. did I shout; did he turn

D. had I shouted; he turns

解析：考查倒装结构。本题考查not until直到……引导的部分倒装句。句意：在车间真的太吵了。直到我喊出最高声，他才转身看我。故A正确。