___ himself in carrying out an experiment, he can’t spare time to look after his children.
#95619
A
Occupied
B
Having occupied
C
Occupying
D
Having been occupied
推荐题目
_____ more attention, your dictation might have been done much better.
#98343
A
To give
B
If giving
C
Giving
D
Given
______ for a few days, the thirsty and hunger soldiers had to give in at last.
#97667
A
Being surrounded
B
Surrounding
C
Having been surrounded
D
Having surrounded
Towards evening, the patient opened his mouth as if _____ something to his son.
#98103
A
said
B
say
C
to say
D
to have said