—Where is John?
—He be reading books in the library, but I’m not sure．
| A．must | B．may | C．can | D．should |
Leaves fall _______piles ________the ground
| A．into; upon | B．upon; into | C．onto; off | D．into; onto |
They think wolves are dangerous _________humans so this leads _______the danger of wolves.
| A．for; to | B．as; for | C．to; to | D．at; in |
Wolves often work __________a team and they never kill for __________.
| A．as; funny | B．for; fun | C．as; fun | D．for; funny |
We should tell hunters _______tigers.
| A．don’t kill | B．not kill | C．killing | D．not to kill |
Yesterday I talked to Amy on the phone and she ______ happy.
| A．looked | B．sounded | C．smelled | D．tasted |