56.-----Hi, Lin Tao. I didn’t see you at the meeting.

　 ----- Oh, I _____ ready for the field trip.

A.am getting　 B.was getting　 C.have got　　 D.will get

55.The man ____ his coat as soon as he walked into the warm room.

A.took away　 B.took down　 C.took off　　　 D.took on

54.We need trees because they _____ CO2, abd let out O2.

A.take off　　 B.take in　　　 C.take out　　 D.take away

53.----Would you mind _____ here?　 ---- _______.

A.my sit / Yes,not at all　　 B.my sitting/ No, of course not

C.me sitting /Yes, of course not　 D.me to sit/ No, not at all

52.The teacher asked the students not to forget ______ the lights when you leave the classroom.

A.to turn off　 B.turn down　 C.turning on　 D.turn off

51.The children in the hospital _______.

A.take good care of　　　　　　 B.took good care of

C.were taken good care　　　　　 D.were taken good care of

50.It _____ the workers about two years ____ the new hospital.

A.spent, to build　　 B.took, to build 　　C.used, to be built　　 D.takes , building

49.They suddenly heard heard someone _____ help in the forest.

A.to call for　　 B.call to　　　　 C.calling with　 D.calling for

48.A refrigherator _______ vegetables and food cool.

A.uses for keeping　　　　　　 B.is used to keeping]

C.is used for keeping　　　　　 D.uses to leep

47.They like _____ and they are good _____ it.

A.dancing , with B.to dance ,on　 C.to dancing,at D.dancing, at