___ 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
The result is very important.It is supposed ______ a secret between you and me.
#92451
A
to be kept
B
to keep
C
being kept
D
keeping
_______ the right kind of training, these teenage soccer players may one day grow into the international stars.
#98887
A
Giving
B
Having given
C
To give
D
Given
Unless ________ to speak, you should remain silent at the conference.
#95045
A
invited
B
inviting
C
being invited
D
having invited
The capsule began swing gently sideways as we lay _______.
#90471
A
relaxed and dreaming
B
relaxed and dreamed
C
relaxing and dreaming
D
relax and dream
It rained heavily in the south, __________ serious flooding in several provinces.
#91724
A
causing
B
having caused
C
caused
D
to cause