________ global temperatures rising, the UN Climate Change Conference was held in Cancun（坎昆）, Mexico last year．
#96412
A
Prevented
B
Preventing
C
Having prevented
D
To prevent
推荐题目
— Is Alice still performing？ — I’m afraid not. She is said the stage already as she has gone abroad for further study.
#89806
A
to leave
B
to have left
C
to be left
D
to have been left
The maker of the popular game Angry Birds announced on Tuesday that it would open its first overseas operation in Shanghai, ______ a clear step to further enter the booming Chinese market.
#90994
A
to mark
B
marking
C
marked
D
having marked
The child is much too young; I object ______ him alone at home.
#91320
A
to leave
B
leave
C
leaving
D
to leaving
The music sounded cheerful and encouraging, all the people present in high spirits.
#90668
A
making
B
to make
C
made
D
having made
Mrs. White showed her students some old maps from the library
#89637
A
to borrow
B
borrowed
C
to be borrowed
D
borrowing