71.
I am sure that . . . . . . . . the time you get home, I will have done it.

72.
The father was vexed . . . . . . . . the son.

73.
David cleaned his room by stuffing everything . . . . . . . . his bed.

74.
There is still no cure . . . . . . . . AIDS.

76.
Suriya is short . . . . . . . . Vidhya.

77.
My mother's plant is . . . . . . . . the TV.

78.
Has he recovered . . . . . . . . his illness yet?

79.
. . . . . . . . the night mysterious creatures prowl.

80.
I will arrive sometimes . . . . . . . . eight am and nine am.