承包人应在索赔事件发生后的( )内向工程师递交索赔意向通知。
A,7天
B. 14天
C. 21天
D. 28天
查看答案
I regret ______ so much time and money on stamps.
A. to waste
B. for wasting
C. having wasted
D. at wasting
He often stopped at the sound of his own steps and was afraid to look ______ his shoulder.
A. over
B. back
C. round
D. beyond
合同是平等主体的( )之间设立、变更、终止民事权利义务关系的协议。
A. 法人
B. 自然人
C. 其他组织
D. 法人、自然人和其他组织
She is making herself iii with ______ over her son's future.
A. troubles
B. annoyance
C. worry
D. consideration