2. Main Idea

Front

Main topic of the paragraph:

Back

how people and birds sing.

Front

Main topic of the selection:

Back

How bus companies got more riders.

Front

Main idea:

Back

People are fighting about net fishing.

Front

This selection mainly tells

Back

how all colors are made from primary colors.

Front

The story mainly tells

Back

how the body was used for measuring.

Front

Main idea of the selection?

Back

What a junk boat is.

Front

Main idea about sleet and freezing rain?

Back

Sleet and freezing rain are not the same.

Front

Main idea of the paragraph?

Back

What a black hole is.