Madame Curie is believed _______ radium.
#96123
A
discovering
B
having discovered
C
to have discovered
D
to discover
推荐题目
______ some of the questions ______,the man said good-bye to us.
#99019
A
Leave;unanswered
B
Leaving;unanswered
C
Left;to be answered
D
Leaving;unanswering
Take care not to get your shoes ______ in mud.
#96603
A
wet or covered
B
to be wet or covered
C
to be wet or covered
D
wet or be covered
Mr. Green told us _______ talk loudly in class.
#96865
A
didn’t
B
don’t
C
not to
D
to not
_______ such a good chance, he planned to learn more.
#97872
A
Given
B
Being given
C
Having given
D
Giving