What they are（）about is which comes first: the chicken or the egg?

This is the military（）Nobody is allowed to get in without permission.

You have your choice of three（）of ice cream.

Under no（）will I go there again.

That is（）behavior and nobody likes it.

This mountain range has many high（）and fertile valleys.

His proposal is（）to all of us and you do not need to tell us more about it.

Everyone（）the right to his own opinion.

This supermarket developed rapidly under his（）

During these ten years, many new methods have been（）in the field of foreign language teaching.