11.He invited all of his ______ to join his wedding party.

11.He invited all of his ______ to join his wedding party.
a.comrade-in-arms c.comrades-in-arm
b.comrades-in-arms d.comrade-in-arm
12.All the ______ in the hospital got a rise last month.
a.women doctors c.woman doctors
b.women doctor d.woman doctor
13.After ten years,all these youngsters became_____.
a.growns-ups c.growns-up
b.grown-up d.grown-ups
14.The police investigated those _____ about the accident.
a.stander-by c.standers-by
b.stander-bys d.standers-bys
15.The Nazi kept those ______ in their concentration camp.
a.prisoner-of-wars c.prisoners-of-war
b.prisoners-of-wars d.prisoner-of-war
16.The manager was greatly appreciate that _____ made by Linda lately.
a.new reel b.news reel c.new-reels d.news reels
17.Mary’s dress is similar in appearance to her ______.
a.elder sister b.elder sister’s c.elder sisters d.elder sisters dress
18.All the people at the conference are ______.
a.mathematic teachers c.mathematics teacher
b.mathematics teachers d.mathematic’s teachers
19.Professor Mackay told us that ______ of lead are its softness and its resistance.
a.some property c.properties
b.some properties d.property
20.Physics _____ with matter and motion.
a.deal b.deals c.dealing d.are