The hero said he didn’t think twice ____ diving into the freezing river to rescue that child.
--Can you tell me anything about the fire ___ last night?----I’m afraid, ____.
We have been good friends for years.And we must ___ the friendship between us.
--Hello, is Mr. Smith at home?---Sorry, but he _____.
--Don't be so disappointed.I’m sure that you can do better in the next exam. --Yes, but I ____ this time.
What’s the best way __ learning English?