1.learning a foreign language doesn't mean to work just in class
2.sleeping late in the morning led to bob to be late fou work yesterday morning.
3.there is something wrong whth the bike .it teally needs being repaired.
1. mean to work 改为 mean working；原因：mean to do sth.想要做某事；mean doing sth.意味着……；第一句的意思是“学习一门外语并不意味着仅仅在课堂上学习”2. to be 改为 being；原因：led to (lead to的过去式，意为“导致”）后接现在分词。3.being repaired 改为 repairing 或to be repaired；原因：need后接现在分词，主动形式表示被动意义，等于 need to be done。以上三题考的全部都是非谓语动词部分的内容。
mean to work错。应是mean working。mean to do打算做 mean doing意味着做……led to错。应是got。lead to后面应加sth或者（sb's）doing sth；get sb to do迫使某人做某事，让某人做某事needs being repaird错。应是needs repairing。need d
