They are experienced porter(搬运工)who know how tothe weight of the rocks they carry.

ght we’d be late for the concert,______ we ended up getting there ahead of time

______ seems to be no possibility ______ the shy girl can win the first prize in the contest

You are very good___ stories.

I’ll come to see your performance at 9:00 tomorrow evening.—I’m sorry, but by then my performance ____ and I ____ reporters in the meeting room