单项填空(共20题,每小题1.5分,共30分)“We can’t go out in this weather,” said Bob, ____ out of the window.
I missed what was happening because I wasn’t ______ very closely.
She went to the station to meet her husband, but _____ him in the crowd.
It’s hard to rescue drowning people because they _____ so much.
High unemployment _____ the government billions of pounds in lost taxes.
What’s the matter with the radio? Why isn’t it _____?