My sister showed ___ _ last night.
A. a book me B. me a book
C. a book for me D. me to a book
Mr. Li is one of ___ _ in our school.
A. the popular teacher
B. popular teachers
C. the most popular teachers
D. most popular teachers
Don’t swim here, or you may be ___ _ .
A. in danger B. danger
C. safe D. well
— What will the weather be like tomorrow? — It might be ___ _ .
A. rain B. sun C. sunny D. wind
I was watching TV ___ _ the thief came into the house.
A. when B. while
C. for D. because
Look! The boy is sitting ___ _ a tree.
A. on B. in C. of D. above
