________ with his work in the Satellite Launch Site,he could not spare any time to stay with his parents though they are very old.
#95621
A
As occupying
B
Occupied
C
Having occupied
D
To occupy
推荐题目
We usually take turns ______cleaning ,and today it is my turn ____it 
#97241
A
to do; doing
B
doing; doing
C
doing ;to do
D
to do ;to do
---What do you think made her so upset? ---_____________ her  hometown.
#95531
A
As she missed
B
Missed
C
Because of missing
D
Missing