use present simple, present continuous, present perfect simple or present perfect continuous: According to research, the demand for alternative medicine (21) … … (rise] recently and approximately 20 per cent of the uk's population regularly … … (turn) to alternative (22) … treatments when they (23) … [be] ill. consequently, more and more british doctors (24] … … (offer) their patients choices of treatment these days and many of them [25] … … … [usually/ combine) alternative treatments with conventional medicine. although alternative medicine [26] … … (become) increasingly popular, doctors (27) … idisagree) about whether or not the treatments are effective. of course, people [28) … medicine for hundreds of years but many practitioners of conventional medicine [29) … [30) … … luse] alternative … iclaim) that so far they … (not see) any convincing proof that alternative treatments are safe or effective. today, the most widely practised alternative treatments are acupuncture, aromatherapy, massage and herbal medicine but other forms of treatment (31) … … … (also / gain] in popularity. what about you? [32] … … lyou / ever / tryl an alternative treatment? if so, was it successful? send your views and experiences to

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