How does a police department build a small army of detective dogs as smart as Sherlock Holmes? It's easy: just 1 clone(克隆) the best dog of these dogs. Scientists in China are already on the 2. According to the report, genetic(基因的) researchers in Beijing have successfully used the DNA from a "Sherlock Holmes of police dogs"—Huahuangma to create a cloned puppy. The idea is that by 3 the babies have the same strong genes as the mother, these pups(小狗) will also be top performers. It is 4 that Huahuangma is a very good girl. The 7-year-old Kunming wolf dog has helped 5 many murder cases for the Yunnan Province police. Her contributions to 6 the peace have made her "the first-class dog". Huahuangma's mini-me—Kunxun was born in a lab in December, following 7 done by researchers from a university. Tests show that Kunxun and Huahuangma are a "99.9 per cent" DNA match, and the cloned pup has already 8 other wolf dogs on several tests. Kunxun will now begin training in drug detection(毒品侦查), and is 9 to be a grown-up police dog at 10 months old.
If Kunxun has as bright a future as hoped, it'll reduce a lot of police-dog training time, which usually takes about 5 years. The final goal is to mass-produce high-performing police dogs that can be 10 in a couple of months instead of years. Whether the plan proves possible or not in the long term, Kunxun is not the first cloned police dog. In South Korea, six 11 police dogs began patrolling(巡逻) the streets in 2008. In 2009, the same company produced five cloned puppies from a police dog. The police dog discovered the last 12 of the Sept. 11 attacks in New York. The pups were reportedly trained as search-and-rescue(救援) dogs themselves.
( )1. A. hardly B. simply C. suddenly D. usually
( )2. A. stage B. problem C. way D. work
( )3. A. improving B. giving C. ensuring D. inventing
( )4. A. reported B. told C. written D. known
( )5. A. work in B. work on C. work with D. work out
( )6. A. breaking B. achieving C. keeping D. making
( )7. A. experiments B. experiences C. stresses D. classes
( )8. A. won B. passed C. followed D. beaten
( )9. A. considered B. failed C. expected D. reported
( )10. A. grown B. shown C. trained D. missed
( )11. A. produced B. cloned C. same D. trained
( )12. A. person B. suspect C. event D. survivor

B ; C ; C ; A ; D ; C ; A ; D ; C ; C ; B ; D