（A） Believed to originate from a small area on their foreheads，elephants emit low-frequency sounds that may be used
（B） Elephants emit low-frequency sounds that are believed to originate from a small area on their foreheads， and they may use this
（C） Elephants emit low-frequency sounds，believed to originate from a small area on their foreheads，that they may use
（D） Originating，it is believed ，from a small area on their foreheads；elephants emit low-frequency sounds they may use
（E） Originating，it is believed，from a small area on their foreheads，low-frequency sounds are emitted by elephants that may be used
6. Out of America's fascination with all things antique have grown a market for bygone styles of furniture and fixtures that are bringing back the chaise lounge， the overstuffed sofa， and the claw-footed bathtub.
（A） things antique have grown a market for bygone styles of furniture and fixtures that are bringing
（B） things antique has grown a market for bygone styles of furniture and fixtures that is bringing
（C） things that are antiques has grown a market for bygone styles of furniture and fixtures that bring
（D） antique things have grown a market for bygone styles of furniture and fixtures that are bringing
（E） antique things has grown a market for bygone styles of furniture and fixtures that bring
7. So poorly educated and trained are many young recruits to the United States work force that many business executives fear this country will lose its economic preeminence.
（A） So poorly educated and trained are many young recruits to the United States work force that
（B） As poorly educated and trained as many young recruits to the United States work force are
（C） Because of many young recruits to the United States work force who are so poorly educated and trained.
（D） That many young recruits to the United States work force are so poorly educated and trained is why
（E） Many young recruits to the United States work force who are so poorly educated and trained explains why
8. Having the right hand and arm being crippled by a sniper's bullet during the First World War， Horace Pippin， a Black American painter， worked by holding the brush in his right hand and guiding it s movements with his left.
（A） Having the right hand and arm being crippled by a sniper's bullet during the First World War
（B） In spite of his right hand and arm being crippled by a sniper's bullet during the First World War
（C） Because there had been a sniper's bullet during the First World War that crippled his right hand and arm
（D） The right hand and arm being crippled by a sniper's bullet during the First World War
（E） His right hand and arm crippled by a sniper's bullet during the First World War.
9. Visitors to the park have often looked up into the leafy canopy and saw monkeys sleeping on the branches， whose arms and legs hang like socks on a clothesline.
（A） saw monkeys sleeping on the branches， whose arms and legs hang
（B） saw monkeys sleeping on the branches， whose arms and legs were hanging
（C） saw monkeys sleeping on the branches， with arms and legs hanging
（D） seen monkeys sleeping on the branches， with arms and legs hanging
（E） seen monkeys sleeping on the branches， whose arms and legs have hung
