在"He bought the watch very cheap"中cheap是副词?可是这句话的答案说，cheap在这里是副词耶！为什么？

英语完形填空,A miser（守财奴）sold all that he had and bought a lump of gold,21 he buried in a hole in the ground by the side of an old wall and 22 to look at daily.One of his 23 observed his frequent visits 24 the spot and decided to watc when did he buy the car 和when he bought the car 怎么区别在哪 he bought the house last year翻译 he,very,house,the,expensive,is,bought He ( )the cheapest one and bought it. She asked me when he bought the car.请问when在宾从里做什么成分 He has bought the bike for over 3 mouths错在哪里 He bought the cheapest computer. He bought the computer at the___ ____.改为同义句 he bought a dictionary for the english subject 同义句 he bought a dictionary( ) ( )english A new bike was bought for him 还是 has been bought for him after he enteredthe senior middle school of the city.为什么?has been bought 为什么错了 错在哪 改错：he bought the book with the money（改同意句）he use the money to bought the book.改错（use to bought) He bought a book yesterday ,the author______which is a teacher.(在定语从句中,用适当的介词填空） The fat man bought __a lot of good things.(he) He bought the house at a high price.什么意思? He has already bought the book(否定句）急 He bought the pen three day ago.转换同义句 he bought a house the window open.改为被动句 He went to the post office and bought two s-------