The project became so expensive that we had to pull out.
A. cancel
B. withdraw
C. revise
D. stop
查看答案
Bird flu continued spreading among both people and animals in Vietnam.
A. 对
B. 错
All the infected Vietnamese have been dead.
A. 对
B. 错
Vietnam received extensive international aid for the first outbreak of bird flu last year.
A. 对
B. 错
Vietnam is seeking international help because the virus is now able to pass from person to person quickly and easily.
A. 对
B. 错