81.
. . . . . . . . concert began with . . . . . . . . song about . . . . . . . . peace and . . . . . . . . work.

82.
It is . . . . . . . . interesting story.

83.
Her husband is ill in . . . . . . . . hospital, so she has to stay at . . . . . . . . home to look after . . . . . . . . children instead of going to work.

84.
. . . . . . . . ass is a beast of burden.

85.
. . . . . . . . condition of the boy is serious.

87.
. . . . . . . . Hyde Park is a very large park in central London.

88.
It has been raining all . . . . . . . . afternoon.

89.
I have . . . . . . . . test tomorrow morning.

90.
I have a black and . . . . . . . . white dog.