China has got a good for fighting against the flu with its careful and smooth organization.
The nationwide smog serves as a constant reminder, indicating that it’s high time we ______ on ourselves.
When and where this took place _____ still unknown.
So touching ______ that I couldn’t hold my tears back when I heard it for the first time.
Life is always full of hardships. _______ a better life, we need positive energy.
—Will you come over to Beijing next summer? —I’d like to, but my family ______ London that summer.