11. Mathematics as well as physics always _    _me a lot of headaches.

   A. has caused     B. are causing     C. cause        D. causes

12. A number of tourists __    received in Grand Hotel.

   A. was     B. is     C. has    D. are

13. The captain is the only one of the players of the team_    _ practice regularly.

   A. have attended   B. who have attended   C. who has attended  D. who attended

14. Two hours _    _  the limit of this rest.

   A. are     B. has been     C. have been     D. is

15. A red rose, together with a letter, _    _  left on the table.

   A. are     B. was     C. were     D. are being

16. Each of the people coming to the party _    _  bringing a present.

   A. are     B. is     C, has     D. have

17. Neither John’s family nor his relative _    _ the special banquet.

   A. attends      B. attend      C. are attending   D. attended

18. Although the first chapter of the book appears easy; the rest_    _rather difficult.

   A. is     B. was     C. are     D. were

19. The greater part of your mistakes _    _ through carelessness.

   A. were making   B. will make    C. has been made   D. were made

20. Neither his knowledge nor his experience as an engineer_    _ him for his job.

   A. have qualified      B. are qualifying    C. qualify      D. qualifies

DDCDB BDCDD