1 . 词性转换
1. congratulate v.祝贺；向.......道喜→____________________n.恭喜；祝贺
2. connect v.（使）连接；联结→____________________n.联系；连接
3. consider v.考虑；细想→____________________adj.体谅的；体贴的→____________________n.仔细考虑；斟酌
4. construct v.建筑；修建→____________________n.建筑；建造
5. contribute v.捐献；捐赠→____________________n.贡献；捐献
6. convenient adj.方便的；便利的→____________________n.方便；便利
7. danger n.危险；风险→____________________adj.危险的
8. dark adj.黑暗的；昏暗的→____________________n.黑暗；阴暗
9. decide v.决定；选定→____________________n.决定；抉择
10. declare v.宣布；声明→____________________n.宣布；声明