_____to reach them on the phone, we sent an email instead.
#92184
A
Fail
B
Failed
C
To fail
D
Having failed
推荐题目
At first I regretted _____ them to stay, but we soon became great friends.
#88612
A
to invite
B
invited
C
to have invited
D
inviting
"The president's report," a smile on his face, he continued, "___ to several hot topics, discusses how to increase peasants' income．"
#88906
A
referring
B
refers
C
having referred
D
referred
Every minute must be made full use of ____ our lessons, for the final examination is coming.
#96656
A
going over
B
to go over
C
go over
D
to going over
______ when to leave, I could only stay at home, _____ nothing.
#93935
A
Knowing not; done
B
Not having known; doing
C
Having not known; done
D
Not knowing; doing