--How did she get infected?
--She ________the virus without any protection.
| A．exposed to | B．had been exposed to | C．had exposed to | D．was exposed to |
【2015·北京】_____we understand things has a lot to do with what we feel.
| A．Where | B．How | C．Why | D．When |
【2015·江苏】_____ Li Bai, a great Chinese poet, was born is known to the public, but some won’t accept it.
| A．That | B．Why | C．Where | D．How |
【2015·福建】—I wonder _________ Mary has kept her figure after all these years.
—By working out every day.
| A．where | B．how | C．why | D．If |
【2015·陕西】Reading her biography, I was lost in admiration for ________Doris Lessing had achieved in literature.
| A．what | B．that | C．why | D．how |
【2015·四川】The exhibition tells us____we should do something to stop air pollution.
| A．where | B．why | C．what | D．which |