英语改句子问题~求解66、 A traffic accident often occurs at a crossroad

英语改句子问题~求解
66、 A traffic accident often occurs at a crossroads. [用名词或名词短语的复数改写原句]

67、 A neighbour acted quickly and thus stopped the fire from spreadingto the other floors. [用含有虚拟语气的结构改写原句]

68、 You sent me a present. Thank you very much for it. [合并为含有定语从句的复合句]

69、 I have never been there. This is the first time. [把两个句子合并为一句]

70、 They didn’t stop working until darkness came on. [用倒装结构改写原句]

71、 We went on a picnic in spite of the cold weather. [改为含有状语从句的复合句]

72、 The general commanded the soldiers to advance immediately. [改为含有宾语从句的复合句]

73、 The photo was so clear that you could see very detail of thebackground. [用简单句改写原句]

74、 He said that the men were thieves. This turned out to be true. [合并为含有非限性定语从句的复合句]

75、 He found no one at home. He left the house in a bad temper. [改写句子,其中一个句子用分词短语替代]

66、 A traffic accident often occurs at a crossroads.[用名词或名词短语的复数改写原句]
Traffic accidents often occur at a crossroad.
67、 A neighbour acted quickly and thus stopped the fire from spreadingto the other floors.[用含有虚拟语气的结构改写原句]
If a neighbor hadn't acted quickly,he couldn't have stopped the fire from spreading to the other floors.
68、 You sent me a present.Thank you very much for it.[合并为含有定语从句的复合句]
Thank you very much for a/the present you sent me.
69、 I have never been there.This is the first time.[把两个句子合并为一句]
This is the first time that I have been there.
70、 They didn’t stop working until darkness came on.[用倒装结构改写原句]
Not until darkness came on did they stop working.
71、 We went on a picnic in spite of the cold weather.[改为含有状语从句的复合句]
We went on a picnic though the weather was cold.
72、 The general commanded the soldiers to advance immediately.[改为含有宾语从句的复合句]
The general commanded that the soldiers (should) advance immediately.
73、 The photo was so clear that you could see very detail of thebackground.[用简单句改写原句]
The photo was clear enough to see very detail of the background.
74、 He said that the men were thieves.This turned out to be true.[合并为含有非限性定语从句的复合句]
He said that the men were thieves,which turned out to be true.
75、 He found no one at home.He left the house in a bad temper.[改写句子,其中一个句子用分词短语替代]
Finding no one at home,he left the house in a bad temper.