_______ on your study, and you will make greater progress.
#93243
A
Concentrating
B
If you concentrate
C
Concentrate
D
To concentrate
推荐题目
. ________ that I was puzzled.
#94083
A
So difficult a question did he ask me
B
Such difficult a question did he ask me
C
Such a difficult question he asked me
D
He asked me a so difficult question
Rather than ______ on a crowded bus, he always prefers a bicycle.
#92094
A
ride; ride
B
riding; ride
C
ride; to ride
D
to ride; riding