按要求改写下列句子，每空一词
【小题1】Qomolangma is 8844.43 meters high.（对画线部分提问）
__________ __________ is Qomolangma?
【小题2】Tom’s desk is tidier than any other student' s in his class.（改为同义句）
Tom’s desk is __________ __________ one in his class.
【小题3】How many people are there in your city?（改为同义句）
__________ the __________ of your city?
【小题4】He is not as hard-working as his sister.（改为同义句）
He is __________ hard-working __________ his sister.
【小题5】Lucy is outgoing. Her twin sister is outgoing, too.（合并为一句）
Lucy is __________ __________ __________ her twin sister.
【小题6】He is the tallest student in his class.（改为同义句）
He is taller than __________ __________ students in his class.
=He is taller than __________ __________ student in his class.
= __________ __________ is taller than him in his class.