I didn t notice her______ at the opening ceremony.A.appearB.appearingC.to appearD.appeared

学历类 专四 已帮助 人

I didn t notice her______ at the opening ceremony.

A.appear

B.appearing

C.to appear

D.appeared

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。