Some of the wheat is from Canada. What about_____ ?
19. I don’t know why he blamed the accident _____ me.
18. The dying man is _____ the help of the doctor.
17. Hunan lies _____ such provinces as Hubei, Jiangxi, Guangdong, Guizhou and Chongqin.
16. Mary answered all the questions _____ the last one, which she had never heard of before.
15. The doctor bent _____ the boy and checked his wound.