In regards to a question on the FCE Use of English paper, part 3 word tranformation:<br/><br/>"In recent years these telescopes have been responsible for the <u>discovery</u> of around forty new planets beyond our solar system."<br/><br/>When do you use discoveries and discovery. For me, both could go here, but the answer is discovery, not discoveries.<br/><br/>Please help!<br/><br/>Many thanks,<br/><br/>Anglaise