91.
Photographs from the satellites launched by NASA at the early 1970s have proved invaluable to the mapping of remote areas.

92.
He has cooked that meal so often he can do it with his eyes closed.

94.
He has been working off and on for several years to compile a dictionary.

96.
There is sufficient fund to meet the requirement of the entire schools in our zone.

97.
You ought not to have gone there, but you did.

98.
The enthusiastic voters were queuing up outside the polling station since morning.

99.
Because of his mastery in this field, his suggestions are wide accepted.

100.
I shall ring him tomorrow in the afternoon.