Although David was _ _ _ _ _ _ after a day’s work in the office, he tried to help his wife the household chores.
A.exhaustion
B.exhausted
C.exhausting
D.exhaustive

If you are a typewriter, you will be accustomed to Microsoft word, this program allows you to save your _______ with many types.
A.files
B.documents
C.documentaries
D.documentary files

Juliet, remember shammed death when Romeo appears, _ _ __ _ _ _?
A.didn’t she
B.doesn’t he
C.do you
D.will you

Geysers have often been compared to volcanoes _ _ _ _ _ _ _ they both emit hot from below the Earth’s surface.
A.due to
B.because
C.in spite of
D.regardless of

Vladimir Putin said that he loved his wife and two daughters as well as his dog, _ _ _ _ _ __ also a female, so much.
A.which was
B.that were
C.all of whom were
D.which were

_________(41)
A.note-paper
B.letter
C.draft
D.paper

_________(43)
A.administered
B.managed
C.controlled
D.protected

I’m sorry I interrupted your speech in the middle.
A.Your speech is very sorry for being interrupted in the middle.
B.I’m sorry to interrupt your speech in the middle.
C.It’s my pity to interrupt your speech in the middle.
D.I apologized for having interrupted your speech in the middle.

She has always had a good relationship with the children.
A.She has always got on well with the children.
B.She has got a lot of friend children.
C.She has always got away well with the children.
D.The children have had her as their friend.

What does the passage mainly discuss?
A.Observations that suggest consciousness in animal behavior.
B.The use of food in studies of animal behavior.
C.The role of instinct in animal behavior.
D.Differences between the behavior of animals in their natural environments and in laboratory experiments.