What a terrible experience! _____ , you are safe, that's the main thing.
There was a very interesting remark in a book by an Englishman that I read recently ______ he thought was the reason for this American characteristic.
----- How about the book you are reading now? ----- Excellent indeed. You can find many problems we have come across _____ in it.
——Will you come to my office when you your work? ——Sure.
Some of the exercises appear to be ones that you have done, but after taking second look, you will find that they are different.
---I’m going to Beijing next week. Do you have anything ______to your son? ---No,thanks.