11.Heinvitedallofhis______tojoinhisweddingparty.

a.comrade-in-armsc.comrades-in-arm

b.comrades-in-armsd.comrade-in-arm

12.Allthe______inthehospitalgotariselastmonth.

a.womendoctorsc.womandoctors

b.womendoctord.womandoctor

13.Aftertenyears,alltheseyoungstersbecame_____.

a.growns-upsc.growns-up

b.grown-upd.grown-ups

14.Thepoliceinvestigatedthose_____abouttheaccident.

a.stander-byc.standers-by

b.stander-bysd.standers-bys

15.TheNazikeptthose______intheirconcentrationcamp.

a.prisoner-of-warsc.prisoners-of-war

b.prisoners-of-warsd.prisoner-of-war

16.Themanagerwasgreatlyappreciatethat_____madebyLindalately.

a.newreelb.newsreelc.new-reelsd.newsreels

17.Mary’sdressissimilarinappearancetoher______.

a.eldersisterb.eldersister’sc.eldersistersd.eldersistersdress

18.Allthepeopleattheconferenceare______.

a.mathematicteachersc.mathematicsteacher

b.mathematicsteachersd.mathematic’steachers

19.ProfessorMackaytoldusthat______ofleadareitssoftnessanditsresistance.

a.somepropertyc.properties

b.somepropertiesd.property

20.Physics_____withmatterandmotion.

a.dealb.dealsc.dealingd.are