12. My teacher gives us a difficult assign task.
A. fast
B. hard
C. easy
D. slow
13. Have you lost your pencil?
A. found
B. clean
C. sharpen
D. destroy
14. Sue is sad about the birthday party last night.
A. thin
B. low
C. happy
D. close
15. I am so slow in running.
A. easy
B. fast
C. hard
D. down
16. The old man sit under the tree.
A. below
B. beside
C. behind
D. over​