they failed to finish the project in time.i regretted______them.A to be not able to help B being not able to help C not being able to helpD not be able to help为什么不是其它选项呢

By the time they got to the cinema,the film?Ais to finished Bhas been finished Chad been finis they who should come failed to appear. They tired to climb the high mountain,h____,they failed. They failed to come yesterday.改为同义句? They had failed to locate the ship they had been sent to look for.翻译. they failed many times,but they （c ）to work hard. They failed to think that they were stronger and more successful 怎么翻译? They had failed in what they had set out to do为什么要用in They went to see you yesterday , but failed to meet you.(强调句应该怎么改?) They failed to catch the bus,___ ___?(反义疑问句） 为什么是didn't they,不是did they They failed _ (get) to the top of the hill at last. 翻译 they failed to get the melons away without being seen. The firemen tried to prevent the fire( )spreading,but they failed请写出原因 They failed to meet the guidelines on physical activity.怎么翻译 Failed to read input Failed to read inpat failed to initialize title failed to create ID