He was inspired to start again _________ he had failed.
| A．where | B．in which | C．when | D．what |
（届湖北省黄冈市高三年级3月测试英语试卷）
According to the latest research, getting enough sleep is _____to maintaining good health and reducing stress.
| A．practical | B．contradictory | C．essential | D．alternative |
（届江苏省南京市高三第二次英语模拟试卷）
One of the characteristics that make me different from many people is my adaptability—I'm _______ and comfortable in new or unusual situations.
| A．acceptable | B．respectable | C．reliable | D．flexible |
（2014届浙江省宁波市十校高三3月联考英语试卷）
Up to now, no one has come up with a（n） explanation of why dinosaurs died out, and it remains a mystery．
| A．astonishing | B．amusing | C．convincing | D．puzzling |
（届山东省济宁市曲阜师大附中高三上学期期中考试英语试卷）
Be _____we can' t expect an absolute freedom of expression.
| A．confident | B．creative | C．grateful | D．reasonable |
（2014届福建省泉州市高三质检英语试卷）
Taxis outside hotels are usually safer，but more_______ for the day hires，which charge more than the passing ones.
| A．pleasant | B．attractive | C．expensive | D．efficient |