1.To go to bed late is bad for our health(改为同义句）

1.To go to bed late is bad for our health(改为同义句）
＿＿＿ ＿＿＿ ＿＿＿ late is bad for our health
2.the computer is so expensive that I can't buy it.(改为简单句）
the computer is ＿＿＿expensive for me ＿＿＿ ＿＿＿
3.we don't know that to do .(改为复合句）
we don't know＿＿＿ we ＿＿＿ ＿＿＿
4.the foreigners show great interest in mount tai(改为同义句）
the foreigners ＿＿＿ ＿＿＿ ＿＿＿ ＿＿＿
5.he is the pride of his parents.(改为同义句）
his parents ＿＿＿ ＿＿＿ ＿＿＿ him
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