----- Where did you learn Greek? -----I didn’t. I just sort of _____ when I lived there.
.Wait till you are more ______. It’s better to be sure than sorry.
.She will tell us why she feels so strongly that each of us has a role ______ in making the earth a better place to live.
.He suddenly saw what looked like a snake in the darkness. For an instant his heart seemed to stop ______.
I can think of many cases ______ students obviously knew a lot of English words and expressions but couldn't write a good essay.
---I'm sorry I stepped outside for a smoke. I was very tired. ---There is no ______ for this while you are on duty.