With a lot of tough problems , the pilot was still calm, cool and collective under pressure.
#96144
A
solve
B
solved
C
solving
D
to solve
推荐题目
— I hope to take the computer course.— Good idea. ____ more about it, visit this website.
#88380
A
To find out
B
Finding out
C
To be finding out
D
Having found out
_____many times, they succeeded _________ the experiment.
#96579
A
Having tried; in doing
B
Tried; in being done
C
Having tried; to do
D
Tried; doing
“Where have you been? We thought that you were lost!” mother said angrily, _________ to Lily.
#91057
A
pointing
B
to point
C
having pointed
D
pointed