单选题：______by curiosity,the detective wondered why Chris phoned h..

The performance of the host,_____ to please theaudience and drew their attention,was greetedwith a coldsilence, however.[ ]A. had intendedB. intendedC. intending D. to intend

New surveys suggest that people are more stressed and working longer hours than ever with technological tools constantly ______.[ ]A. updatingB. updatesC. updatedD. to update

Don't forget that time_______never comes again.[ ]A. lostB. losingC. to loseD. have lost

____ that hemight lose his job, Peter always works extra hours to pleasehis boss. [ ]A. Worrying B. Having worried C. Having been worried D. Worried

用bring短语的适当形式填空。1.Sciencehas____ manychangesinourlives. 2.Mary_____ hersononherown. 3.Hedoespart-timejobsthat_____him ____ about30dollarsaweek.