— When did he go to summer camp?
— He _____ to summer camp five days _____.

He usually ________ his bag ________ magazines and story books.

—           do your parents go to the movies?   —Once a month.

Only ten boys in our class use the Internet to get information, ______ use it to play games.

---    do you want to be when you grow up?
--- I want to be a pilot and fly in the blue sky.
A. Which               B. Who                  C. What

--- It is very cold this winter.
---Yes, but it was      colder last winter, I remember.
A. already                B. even                  C. more

--- __     salt did you put in the soup?
--- None. I forgot.
A. How much            B. How many            C. How long

In our school, _     students ride their bicycles to school every day.
A. three hundreds         B. hundred of            C. hundreds of

---       are you going to improve your English?
--- I'm going to listen to the teacher more carefully.
A. Why                 B. How                 C. Whe

Look! There are      on the floor. Please pick them up.
A. two piece of papers
B. two pieces of paper
C. two pieces of paper