All of us still remember the terrible earthquake that _______Tangshan twenty years ago.
We first met on a train in 2010. We both felt immediately that We each other for years.
They _ on the programme for almost one week before I joined them, and now we on it as no good results have come out so far.
When the old man to walk back to his house, the sun itself behind the mountain.
--- Have you known Dr Jackson for a long time?--- Yes, since she the Chinese Society.
He football for many years before he was twenty.A was playing B. playedC. has played D. had played