10. Russian is a _______ language to learn than English is.

      A. difficult                                                             B. more difficult

      C. most difficult                                                    D. more and more difficult

11. He has _______ his sister does.

      A. as friends as                B. more friends as         C. many friends than    D. more friends than

12. There are _______.

      A. twice as much computers in our office as there was

      B. as twice many computers in our office as they were

      C. twice as many computers in our office than there used to be

      D. twice as many computers in our office as there used to be

13. Silver is not _______ gold,

      A. as much heavy as                                              B. so heavy than

      C. more heavier as                                                 D. so heavy as

14. I think cow is _______ of all animals.

      A. most useful                  B. less useful                C. the most useful         D. the more useful

15. The new machines use _______ the old ones.

      A. less water and electricity more than                 B. less water and electricity than

      C. less water and electricity                                   D. as less water and electricity than

10. Russian is a _______ language to learn than English is.

      A. difficult                                                             B. more difficult

      C. most difficult                                                    D. more and more difficult

11. He has _______ his sister does.

      A. as friends as                B. more friends as         C. many friends than    D. more friends than

12. There are _______.

      A. twice as much computers in our office as there was

      B. as twice many computers in our office as they were

      C. twice as many computers in our office than there used to be

      D. twice as many computers in our office as there used to be

13. Silver is not _______ gold,

      A. as much heavy as                                              B. so heavy than

      C. more heavier as                                                 D. so heavy as

14. I think cow is _______ of all animals.

      A. most useful                  B. less useful                C. the most useful         D. the more useful

15. The new machines use _______ the old ones.

      A. less water and electricity more than                 B. less water and electricity than

      C. less water and electricity                                   D. as less water and electricity than

10. Russian is a _______ language to learn than English is.

      A. difficult                                                             B. more difficult

      C. most difficult                                                    D. more and more difficult

11. He has _______ his sister does.

      A. as friends as                B. more friends as         C. many friends than    D. more friends than

12. There are _______.

      A. twice as much computers in our office as there was

      B. as twice many computers in our office as they were

      C. twice as many computers in our office than there used to be

      D. twice as many computers in our office as there used to be

13. Silver is not _______ gold,

      A. as much heavy as                                              B. so heavy than

      C. more heavier as                                                 D. so heavy as

14. I think cow is _______ of all animals.

      A. most useful                  B. less useful                C. the most useful         D. the more useful

15. The new machines use _______ the old ones.

      A. less water and electricity more than                 B. less water and electricity than

      C. less water and electricity                                   D. as less water and electricity than