The plan for the new design occurred to Mr. Smith______on his work recently.
#95059
A
while concentrated
B
while concentrating
C
while he concentrated
D
while concentrating himself
推荐题目
_______ on your study, and you will make greater progress．
#93243
A
Concentrating
B
If you concentrate
C
Concentrate
D
To concentrate
He ______ prison two years ago and now he _______.
#94722
A
was put in; was set free
B
was shut into, is set free
C
put into, has been set freely
D
was put into; has been set free
____ talking with his Grandma, he went away without saying a word.
#94019
A
Tiring with
B
Tiring of
C
Tired with
D
Tired of
It is said_______ was all _______ he said.
#93775
A
that that; that
B
what what ; what
C
that which; what
D
that that; what
It was the third time that the boy _________ late. So his teacher got very angry.
#92822
A
have been
B
was
C
had been
D
was being