_______ a pair of compasses, it is easy to describe a circle.
#70488
A
Having
B
To have had
C
If you have
D
if having
推荐题目
_________ last as his coach suggested, he wouldn’t have narrowly escaped being killed. 
#73225
A
Hadn’t the skydiver exited
B
If the skydiver hadn’t exited
C
Should the skydiver not exit
D
If the skydiver wouldn’t exit
Word came _______our team won the football match.
#67978
A
that
B
what
C
whether
D
if