The intensity of UV rays in some sunbeds can be more than 10 times(11)than the midday sun, Cerny said.

　　In the United States, several states require parental approval(12 )minors can use tanning salons. Wisconsin bans people 16 and(13) from using tanning beds, and others ban children under(14). At least 29 states have -regulations governing minors use of tanning salons.

　　In the U. K. , Scottish politicians passed legislation banning those under 18 from using tanning beds, though it hasnt yet been implemented. There are no plans for 14 in the rest of the U.K.

　　The World Health Organization has previously recommended that tanning beds be regulated because of their potential to damage DNA in the skin.

　　Experts said most deadly skin cancers could be(15) if people took the proper precautions when in the sun and avoided tanning beds.

　　1. A American B British C world D black

　　2. A overtaken B overlooked C overseen D overwhelmed

　　3. A satisfying B encouraging C relaxing D worrying

　　4. A typically C occasionally D hopefully

　　5. A end B start C turn D line

　　6. A at B on C of D in

　　7. A kinds B ages C colors D sizes

　　8. A assign B attribute C contribute D allocate

　　9. A more B so C as D like

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