1.He is tired.I am tired,too
He is tired.( so am ) I.
2.I am too tired to get up so early.
I am (so ) tired( that ) I ( can't ) get up so early.
3.What's the price of your sweater?
( How much ) does your sweater( cost )
4.It's time that we should go to school.
It's time ( for ) us ( to ) go to schoool.
5.You can sit down,or you can stand there.
You can (eithr ) sit down ( or ) stand there.
加油!不明白再问!