Complete the article. Use the present simple, present continuous or present perfect of the verbs in brackets.

According to research, the demand for alternative medicine 11 … (rise) recently and approximately 20 per cent of the UK’s population regularly 12 … (turn) to alternative treatments when they 13 … (be) ill. Consequently, more and more British doctors 14 … (offer) their patients choices of treatment these days and many of them 15 … (usually/combine) alternative treatments with conventional medicine. Although alternative medicine 16 … (become) increasingly popular, doctors 17 … (disagree) about whether or not the treatments are effective. Of course, people have been using alternative medicine for hundreds of years but many practitioners of conventional medicine 18 … (claim) that so far they 19 … (not see) any convincing proof that alternative treatments are safe or effective. Today, the most widely practiced alternative treatments are acupuncture, aromatherapy, massage and herbal medicine but other forms of treatment 20 … (also/gain) in popularity. What about you? 21 … (you/ever/try) an alternative treatment? If so, was it successful? Send your views and experiences.