27. ---- Mr. Wang got the first prize in the singing competition last week.---- Oh. That’s what he ______ for years.
Only after my friend came ________.
It’s a good habit to keep everything ________ in your study.
The angry boy looked at his mother and shouted out the words ________ in his heart for many years.
--- Any good way to get there on time? ---Only by ________.
You must read the _______ with great care to see if the drug contains PPA before it is taken.