Unit 3 Online travel
（ ）7. the machine _____ memory robot.
a. calls b. is called c. is call d. is calling
（ ）8. my printer can ____ very quickly.
a. be printed b. print c. be print d. to print
（ ）9. it’s used ____.
a. to writing b. for write c. for writing d. to write
（ ）10. tea is ____ in the southeast of china.
a. made b. grown c. produced d. grew
（ ）11. english is used ____ travelers all over the world.
a. to b. for c. by d. as
（ ）12. ---where ____ the machines _____, do you know?
---in china.
a. is, made b. are, made c. have, made d. do, made
（ ）13. this kind of machine _____ cutting paper.
a. uses for b. is using for c. is used to d. is used for
（ ）14. about 500 cars ____ in the factory last month.
a. were produced b. are produced c. produce d. produced
（ ）15. the printer is used ____ printing information.
a. to b. by c. for d. as
答案：1~5 aabca 6~10 bbacb 11~15 cbbac