初中单选题英语急,请详细一点谢谢

初中单选题英语急,请详细一点谢谢
（1）tom does everything( ),so his teacher spraks( )of him
答案我就写我错的,和真确答案.我认为一空填careful我认为修饰名词应该是形容词才对吧,2空填highly,因为副词修饰动词 speak没错吧?但是正确答案是carefully,highly,为什么是副词carefully搞不懂.
（2）the population of beijing is larger than( )shengzhen.
A,无 B,the one in C,that of D,those of
As for learning english ,students who read a lot can do much better than( )who don‘t
A,those B.that C,these D,them这两道类型一样的,就是those that these,重点讲讲,老是说还像是,those接句子中同类型的什么复数?that接句子中不同类的不可数?不懂
（3）（ ）Green are preparing for the coming thanks-giving Day
A,无 B,a C,an D,the 为什么选D,只知道the Greens是指一家人的意思,其他就不知道了.英语较薄弱,讲能理解一些,谢谢