1) The first city in the United states that put into effect major plan for the clustering of government buildings was Washington. 答案是PLAN,真不明白PUT为什么对?
2) Dolphins are sleek and powerful swimmer that found in all seas and unlike porpoises, have well-defined beaklike snouts and conical teeth. 答案是THAT FOUND,可我觉得HAVE有问题?
1) The first city in the United states that put into effect major plan for the clustering of government buildings was Washington. 答案是PLAN,真不明白PUT为什么对? ---------------------- plan 要复数,主句谓语是was, put是过去式做定语从句的谓语,所以没错。
2) (Dolphins) (are) (sleek and powerful swimmer that found in all seas) and (unlike 主 谓 宾语(带定语从句) 壮语 porpoises,) (have) (well-defined beaklike snouts and conical teeth.) 谓语(此处主语省略,还为dolphins) 宾语 答案是THAT FOUND,可我觉得HAVE有问题? -------------------------------------- that found 改为 that are found, 并列句