问题

__ as a volunteer teacher in Tibet for a year, Linda has become more experienced.
A:To work
B:Working
C:Having worked
D:Worked;
B:Working
C:Having worked
D:Worked;
正确答案是:
同类题型
The girls are talking about the art festival _________.—Yes. They have so many fun things to share.
Her mother does notof her going to study in the United States alone.[ ]
_____ the city center, we saw a stonestatue of about 10 meters in height. [ ]
The number of people present at the concert was ________ than we expected.