What does the author mean by stating that “The dulotic species of ants ... are the supreme social parasites”?
A.The Polyergus are more highly developed than the Formica.
B.The Formica have developed specialized roles.
C.The Polyergus are heavily dependent on the Formica.
D.The Formica do not reproduce rapidly enough to care for themselves.

__________if they had feathers instead of hair?
A.Can people possibly fly
B.Could people be able to fly
C.Will people possibly fly
D.Would people be able to fly

He can't go out because he __________his work.
A.doesn't finish
B.hasn't finished
C.didn't finish
D.hadn't finished

Carol is excited__________her new job.
A.for starting
B.to starting
C.about starting
D.. for start

You__________write to her for she'll be here tomorrow.
A.don't
B.mustn't
C.needn't
D.haven't

If she had known how awful this job was going to be, she__________it.
A.would accept
B.wouldn't accept
C.wouldn't have accepted
D.would have accepted

If Tan Son Nhat Airport __________clear of fog, we'll land there.
A.is
B.was
C.will be
D.could be

I saw him hiding something in a __________bag.
A.plastic small black
B.small plastic black
C.black small plastic
D.small black plastic

My mother made a birthday cake__________.
A.about me
B.for me
C.to me
D.to I

The word “raise” in paragraph 1 is closest in meaning to __________ .
A.rear
B.lift
C.collect
D.increase