So absorbed     in the experiment that he didn’t even notice it was already over 12 o’clock.
#81201
A
did he
B
he did
C
was he
D
he was
推荐题目
If my mother goes , ____.
#84089
A
so Father is
B
so does Father
C
Father goes to
D
So will Father
No matter how frequently__,the works of Beethoven still attract people all over the world.
#80752
A
performed
B
performing
C
to be performed
D
being performed
–- Helen, are you going to the airport to see Jack off the day after tomorrow? -- _____________, I would go.
#79981
A
Were he to leave tomorrow
B
If he was about to leave tomorrow
C
Was he to leave tomorrow
D
If he would leave tomorrow
Hearing the dog barking fiercely, away _____. 
#84625
A
fleeing the thief
B
was fleeing the thief
C
the thief was fleeing
D
fled the thief