—Professor Smith, can I meet you at 10 o’clock tomorrow morning?—Oh, I’m sorry. I a lecture at Hunan Normal University.
Does John know any other foreign languages ____ French?
The old man died ____ cold ____ a cold night.
The trees ____ front of the house are ____ the charge of Old Li.
- Do you go there ____ bus? - No, we go there ____ a train.
In Hangzhou Mr Green was so struck ____ the beauty of nature that he stayed ____ another night.