52.The sound has reached its----
A maximum B.restricted C.limited D.immense
53.he knows little of English to say -----of English culture
A.something B.everything C.nothing D.anything
54.Sweep the ground around you dormitory------
A.by means of B.by any means C.by some means D.by no means
55.I hope you will ------in mind all I am saying
A.keep B.put C.have D.bear