1,The road was so n() that the truck couldn't pass.
2,Yesterday I took part in the b() 100-metre race.
3,A 12-year-old boy named Li Lida successfully went a() the Qiongzhou Channel.
4,Don't draw pictures on p() walls.
5,You should pick up the rubbish and throw it into a d().
6,When the sun came out,the snow d() soon,melted.
7,Do you know that some dinosaurs were covered with f()?
8,The s() surfer is quite different from the so called beach boys.
9,Don't forget the c() when you clean the classroom.
10,All members of the audience should be dressed n().