—That must have been a lot of work.—Yeah,it us
—That must have been a lot of work.—Yeah,it us
That must have been a terrifying experience.Yeah.i ____in th
-That must have been a long trip to get there - Yeah ,it____
--that car must have cost a lot of money.
that car must have cost a lot of money.
I have been meeting a lot of people that way
He said that it had been a lot of fun.
there have been a lot of changes in that place同一局转换a lot of
Describe a place that you have been to that has a lot of wat
i'm still alive must have been a miracle,it's been a hell of
take a look at that car,it must have been expensive,为什么用have
“It gives us a lot of fun”