Ⅱ.根据中文提示，完成句子(10分)

76.穿蓝色衣服的那个男孩看起来很高兴。

The boy                       looks          .

77.昨天他们花了三个小时看电视。

It                        three hours to                     yesterday .

78.不要到处扔垃圾。

Don’t throw the rubbish                                    .

79.请你不要打开窗户好吗？

Would you mind                     the windows?

80.他直到病重才戒烟。

He didn’t                      drinking        he was badly ill.