16. There’s a bird _______in the tree.
A. sing B. sings C. singing D. to sing
17.（2016·广东深圳）—It is reported that many wild animals in the world are ___________ because of human behavior.
—We must do something to stop people from hunting and selling these animals.
A. in danger B. in public C. in silence
18.（2015·天津）My parents didn’t allow me ______ to the party.
A. go B. to go C. goes D. went
19. As we all know, sheep feed _______ grass.
A. in B. on C. at D. out
20.（2015·山东泰安）When you leave, please turn off the lights _________ energy.
A. save B. to save C. saving D. saved
21. （2015·湖北黄冈）—What should we do for the disabled children in the Children’s Home?
—You’re supposed to________ a study group to help them.
A. take up B. fix up C. set up D. stay up
22. In order to _______the sunrise, today all the children got up very early.
A. see B. saw C. seeing D. sees
23. When Robert was a small boy, he _______playing the piano.
A. was interested in B. was good for
C. was good with D. was strict with
24. If farmers _______the land, the animals won’t have any places to live in.
A. took away B. put up C. took off D. put on
25. The American dance made me _______my aunt in Canada.
A. look up B. looked up C. think of D. thought of
