问题
选择题
_____ is now no _____ that global warming is a security threat to us all.[ ]
A. There; doubt
B. There; need
C. It; doubt
D. It; need
答案
答案:A
_____ is now no _____ that global warming is a security threat to us all.[ ]
A. There; doubt
B. There; need
C. It; doubt
D. It; need
答案:A