During the flood many students volunteered ________ through the weekend, giving out food and water for the victims.
#88784
A
working
B
to work
C
to have worked
D
having worked
推荐题目
It’s reported that energy drinks are not allowed ___ in Australia.    
#89833
A
to be making
B
to be made
C
to make
D
to have been made
When I came back from shopping, I found my purse __________.
#95909
A
having stolen
B
being stolen
C
stolen
D
stealing
He is often listened __________ English songs, but this time we had him _________ a Russian song.
#94152
A
to to sing; sing
B
to sing; to sing
C
sing; to sing
D
sing; sing