I am in America, but my parents _________.

Tom, you look tired this morning. What’swrong—I was so busy that I didn’t go tobed________12 o’clock last night.

I can never forget the day ________ we worked together and the day ________ we spent together.

History is the best teacher It ______records the development path of each country and foretells the future to us

g a expression in the class, he was scolded bythe teacher.