you'd better ( )look up every new word in the dictionary because _英语解答

you'd better ( )look up every new word in the dictionary because you can guess it from the xontest.
1.don't 2.not 3.to not 4.not to

人气：429 ℃　时间：2019-12-12 08:32:34

解答

had better +动词原形,其否定形式是had better not do sth