In that school, English is compulsory for all students, but French and Russian are _________.
A. special
B. regional
C. optional
D. original
我国累计技术引进最多的贸易伙伴是()
A. 日本
B. 美国
C. 欧盟
D. 以色列
The fact that so many people still smoke in public place _______that we may need antionwide campaign to raise awareness of the riks of smoking.
A. suggest
B. suggests
C. suggested
D. suggesting
我国的高新技术产品对外贸易最大顺差来源地是香港和()
A. 美国
B. 台湾地区
C. 日本
D. 韩国