_________(67)
A.you
B.your
C.yours
D.yourself

________(70)
A.a
B.an
C.the
D.this

A.complexion
B.examination
C.exaggerate
D.exhibit

Why don't you get your hair cut, Gavin?" said Adam.
A.Adam advised Gavin to cut his hair.
B.Gavin was suggested to have a haircut.
C.It was suggestable that Adam get Gavin's haircut.
D.Adam suggested that Gavin should have his haircut.

Although he was very tired, he agreed to help me with my homework.
A.Tired as he was, he agreed to help me with my homework.
B.Despite being very tired, but he agreed to helpme with my homework.
C.Tired though he was, but he agreed to help me with my homework.
D.As tired as was he, he agreed to help me with my homework.

Susan is more attractive than her sister.
A.Susan’s sister looks very attractive.
B.Susan’s sister is not as attractive as her.
C.Susan is not so attractive as her sister.
D.Susan looks more attractively than her sister.

We couldn’t have managed our business successfully without my father’s money.
A.Hadn’t it been for my father’s money, We couldn’t have managed our business successfully.
B.We could have managed our business successfully with my father’s money.
C.If we could manage our business successfully, myfather would give us his money.
D.If we couldn’t have managed our business successfully,we would have had my father’s money.

The upbringing of highly intelligent children requires _____.
A.an expensive education
B.good musical instruments
C.parental support and encouragement
D.wealthy and loving parents

The word “Others” used in the first paragraph refers to _____.
A.other people
B.other scientists
C.other children
D.other geniuses

Scientists chose twins for their study because ____________________.
A.each twin has the same environment as his/her twin
B.they are born into the same family, hence the same upbringing
C.they have the same economic background and hencethe same opportunities
D.they have the same genetic background, usually with similar intelligence