I know one of the things I was unsure about was _____ hard it would be to climb this mountain.
#66039
A
what
B
that
C
however
D
how
推荐题目
“___________that again!” father shouted to me when I was found playing with fire.
#66023
A
Never to do
B
Don’t never do
C
Do never
D
Never do
Keep practicing and you _____ your English.
#66108
A
improve
B
will improve
C
improved
D
were improving