This is the building _____which I work.

A. up
B. down
C. to
D. in

John is the ______director of this movie.

A. artists
B. artistic
C. artificial
D. cartoon

There are a wide _____of options.

A. vary
B. varies
C. variety
D. varing

Creativity is a human______.

A. treat
B. trait
C. treating
D. track

Do not judge a person by his _______.

A. appear
B. appeal
C. appearance
D. appears

A diet that is high in sugar would most likely lead____obesity.

A. to
B. in
C. at
D. besides

The number had dropped ______only 22 percent.

A. in
B. at
C. on
D. to

How will society treat__________ children?

A. imperfect
B. perfection
C. permit
D. permitted

All of this bring up some difficult social and___1___ questions.What are the long-term health ___2___of genetic engineering? Will too many parents choose to have children of the same gender leading toa ___3___of boys or girls? What will happen to children whose parents cannot __4___ to give them the physical and mental advantages enjoyed by their___5____ "designed" peers?

But recent progress in genetic ___1__has led some scientists to believe that the day when parents can “shop” for their future child’s physical, __2__ , and personality traits is rapidly approaching. It seems that almost every day scientists __3__ new genes and the traits that they control. Already, genetic testing can be used to identify gender very early in the development of the fetus. The genes that mark for a few serious genetic diseases can also be identified. And there are scientists who are __4__ that very soon they will find the genes for a wide variety of traits — artistic talent, courage, a __5__ toward depression, physical appearance — just about anything you can imagine.