The tragedy of the innocent young Brazilian boy killed by the British police has put the British police in a difficult________.

Living in a big city has many _____, such as good schools, libraries and convenient traffic.

The _______ of large supermarkets, such as Lianhua Supermarkets, has sounded the death knell（钟）of the local shops.

The old man kept on studying Chairman Mao’s ___ in his ___.

In dealing with public relations, we should make every effort to prevent the _____ in personality.