Our parents have done a lot for us. I think we should ______ them by working hard.
—Helen, we are taking a boat trip to Hainan this weekend. Would you like to go with us? —That sounds exciting. I’d like to, but I can’t. _______!
_______you see near the North Pole is nothing but ice and snow.
He opened the envelop, had it_____ and began to read it.
---Where did you ____ Japanese? ---While I was staying with some Japanese students.
I suggest those who would like to learn about the event_____ the report in yesterday’s newspaper, because the report has_____ the event thoroughly.