He is so busy with the research he has no time left for any other activity.
#81613
A
which
B
that
C
why
D
because
推荐题目
Across North China in the world, namely the Great Wall.
#81879
A
the longest wall runs
B
runs the longest wall
C
does run the longest
D
does the longest wall run
Only when he had done it ______ that he had made a mistake.
#82881
A
he then realized
B
did he realize
C
before
D
he realized
______ the teacher has given permission, ______allowed to use the equipment in the lab.
#80828
A
Only if, are the students
B
If only, the students are
C
If only, are the students
D
Only if the students are
Not until I dropped off from school ____ how much time I had wasted.
#80684
A
didn't I realize
B
I realized
C
I didn't realize
D
did I realize
－David has made up his mind to continue with his studies.－_______ and _______.
#82093
A
So he has; so have I
B
So has he; so have I
C
So he has; so I have
D
So has he; so I have