The Summer Palace is really beautiful. In fact, I doubt whether China has _________ park.

Did you make sense of what the man said just now?—No, his meaning didn’t ______ ．Would you explain it to me?

While in college, Mak never minded ________ extra work for his class.

I don’t doubt _____he will come next week.

Jackie always gives friends a helping hand when they need it. I’d like to be his friend. —That’s true. Just as the saying goes, “__________.”