Fears of "mad cow" disease spread (1) the globe last week (2) South Africa, New Zealand and Singapore joining most of Britain’ s European Union partners in (3) imports of British beef. In London, steak restaurants were empty follwing the March 20 announcement by scientists that they had found a (4) link between mad cow disease from British beef and its human (5) , Creutzfeldt-Jakob disease(CJD) . Efforts to reassure consumers and governments proved (6) . France, Germany, Italy, Finland and Greece were among countries which announced bans (7) British beef shipments. A committee of EU veterinary experts, meeting in Brussels, (8) new protective measures but said transmission of the disease from cattle to humans was unproven and did not (9) a general ban on British beef exports. Britain’s own main consumer group advised people to (10) beef if they wanted to be absolutely sure of not (11) CJD which destroys the brain and is always (12) . "Could it be worse than AIDS" The stark headline in Friday’s Daily mail newspaper encapsulated the fear and uncertainty (13) Britain. CJD (14) humans in the same way that BSE makes cows mad—by eating away nerve cells in the brain (15) it looks like a spongy Swiss cheese. The disease is incurable. Victims show (16) of dementia and memory loss and usually die (17) six months. Little is known (18) sure about the group of diseases known collectively as spongiform encephalopathies, which explains (19) some eminent scientists are not prepared to (20) a human epidemic of AIDS-like proportions.

A. have recommended
B. has recommended
C. recommended
D. recommending