67.　　 We still have a long way ___________ (go).

66.　　 How do you like 　___________ (live) here?

65.　　 It is a wonderful place ___________ (live) in.

64.　　 They used to ___________ (be) friends.

63.　　 He gets used to ___________ (go) to school on foot.

62.　　 We have a lot of work ___________ (do).

61.　　 He can’t stand 　___________ (live) here.

60.　　 How long _________you _________(be) like this?

59.　　 It’s our duty ___________ (clean) our classroom.

58.　　 There are some boys ___________ (stand) on the ground.