Unemployment arises partly from overpopulation and if fines can’t keep the rich from having more than one child, we should say that the regulation is not ________. 

The deserted island is only _______ by boat.

–What do you think of your visit to the Nature Park? -- I really enjoyed it. It was ____ than I expected.

―Are you satisfied with what she has done?    ―Not a little. It can’t be ________.

Compared with other animals, snakes are believed to be below ____ in intelligence.