To our surprise, the painting considered ___ should have won the prize.
| A．being copied | B．having been copied |
| C．to have copied | D．to have been copied |
As a result these endangered animals may even .
| A．die away | B．die down | C．die out | D．die off |
I’m protecting myself mosquitoes.
| A．from | B．in | C．on | D．at |
What must be done if wildlife protection is?
| A．success | B．succeed | C．successful | D．to succeed |
----____ I take the book out?
---- I’m afraid not.
| A．Will | B．Must | C．May | D．Need |
Food, ______ and shelter are the three most necessary things for people to depend on.
A. clothes B. clothing C, cloth D. dress