帮忙做几道英语题!（句型转换,每空填一词）

How much; cost
for; to
either o

How much; cost
for; to
either or

How much; cost
for; to
either or

What's the price of your sweater?
_How_____ much_____does yuor sweater_cost____?
It's time that we should go to shool.
It's time _for____us_to____go to shool.
You can sit down,or you can stand there.
You can_either____sit down _or____stand there.