12.if you are tired,__a rest.13.he is not honest,__believe him.14.why are you walking so fast?i__get home to do my work.15.i cant stop snoking,doctor.for your health,im afraid you__15.must B.can C.may D.do
问题描述：
12.if you are tired,__a rest.13.he is not honest,__believe him.14.why are you walking so fast?
i__get home to do my work.
15.i cant stop snoking,doctor.for your health,im afraid you__
15.must B.can C.may D.do
答