______ he refused to give any explanation.A.When asked to comment on the quality of the

外语类 公共英语 已帮助 人

______ , he refused to give any explanation.

A.When asked to comment on the quality of the goods

B.When he being asked to comment on the quality of the goods

C.When asking to comment on the quality of the goods

D.When he asked to comment on the quality of the goods

热搜:关于氨基酸代谢错误的论述是_________。