到目前为止,我们国家已取得了很大的进步.
So far, our country e great .
Shanghai is my father's favorite city and it's his (five)time to visit it.
Don't eat too much junk food because it's (healthy).
Helen enjoys (listen) to soft music when she is tired.
We should speak to the old people (polite).
They came up a good idea to keep their classroom clean and tidy.