----When did you visit the zoo? ----_____________.
_______the sun was not yet up, many people were already taking exercise in the square
—Jim, remember to return this book by Friday. —_______.
Mr. Wang has left for Guangzhou. He ____ a speech there in two days.
If my frirends have any problems, my door is ______ open to them.
As time____, you'll come to think of English as your friend and love it.