6．He a________ at the enemies with the gun.

5．This is a building in European s________.

4．Your ideas do not seem to be about r________.

3．This play is divided into three acts，and each act has three s________.

2．I like the paintings of Qi Baishi and d________ is my favorite lesson.

1．He likes cats but d________ dogs.

5．The new city，Brasilia，replaced Rio de Janeiro as the capital of Brazil in 1960.

4．He went to Beijing aboard a train last night.

3．You are welcome to use our swimming­pool.