He stood        to the painting and studied it        .

 With April 18’s railway speedup, highway and air transport will have to compete with __________ service for passengers. 

（2014年安徽省合肥市高三第三次教学质量检测）23. -- Don't you think Carl was brave to go wingsuit flying?-- Personally, I think he was ______. He shouldn’t have risked his life to do so.

Don’t turn round .Go______ on till you see the hospital.

—How______do you attend the evening classes?—______,three times per week.