Tom failed the experiment yesterday.A.doingB.didC.to doD.do
来源：网络
时间：
推荐文章
Tom failed ______ the experiment yesterday.
A.doing
B.did
C.to do
D.do
试题答案
C
Tom failed ______ the experiment yesterday.
A.doing
B.did
C.to do
D.do
C