cho mình xin giải thích vì sao chọn mấy câu này với ,mình biết làm mà không biết cách giải thích

1. She's not only beautiful _________ intelligent.

a. but also               b. but                      c. however              d. yet

2. I was very tired, ________ I determined to walk on to the next village.

a. therefore             b. however             c. and                     d. or

3. You can come here either on Monday__________ on Friday.

a. or                        b. nor                      c. both                    d. and

4. The lecture was _______ interesting and instructive.

a. as                        b. either                  c. neither                d. both

5. _______their small size, the cameras take good pictures.

a. In spite of           b. Despite of                     c. Because              d. And

6. She could not decide_______ to drive_______ to jump into water.

a. both/ or               b. not only/ but also         c. either/ or            d. whether/ or

7. Flying is not only faster, _______ safer than traveling by car.

a. also                               b. so                       c. and                     d. but also

8. Beth can play the guitar_______ the violin.

a. also                               b. so                       c. but also              d. and

9. _______his physical handicap, he has become a successful businessman.

a. Although            b. In spite of           c. Despite               d. b or c

10. I like bananas, _______ my brother doesn’t

a. because               b. and                     c. but                      d. even though

11. She closed the door_______ left for the city.

a. and                      b. but                     c. or                        d. therefore

12. The mail comes at ten o'clock every day_______ Sunday.

a. except                 b. although             c. or                        d. and

13. We need wither a nail_______ a screw to hang this picture.

a. and                      b. or                        c. both                    d. but

14. It's raining, _______ I can't go to the beach.

a. so                        b. or                        c. but                      d. and

15. An effective paragraph must _______ be unified and ordered but also complete.

a. in addition                    b. either                  c. not only              d. as well

16. _______ his poor English, he managed to communicate his problem very clearly.

a. Although            b. Even though       c. though                d. In spite of

17. He is saving_______ he can go on vacation.

a. so that                 b. so                       c. unless                 d. that

18. The flight was canceled_______ the weather conditions were bad.

a. because of          b. due to the fact that        c. thanks      d. that

19. _______ Marge, three couples are invited

a. Addition             b. Besides              c. Next                   d. Moreover

20. It was still painful, _______ I went to see a doctor.

a. but                      b. or                        c. so                        d. however

21. We know_______ him and his wife.

a. either                  b. neither                c. both                    d. as well

22. He was the best in class at Maths and English; _______ he was the best footballer in the school.

a. moreover            b. however             c. or                        d. so

23. Geography is a very interesting subject; _______ very few people study it thoroughly.

a. and                     b. however             c. or                        d. so

24. It was very wet_______ I decided not to go

a. and                     b. but                      c. or                        d. so

25. I'll offer it to Tom. _______, he may not want it.

a. Even though       b. As                      c. When                  d. However

26. _______ we lived in town, we often went to the theater

a. After                   b. When                 c. For                      d. Or

27. _______ I sympathize with your point of view, I cannot accept it.

a. While                 b. Although            c. But                     d. a or b

28. How can you expect your children to be truthful_______ you yourself tell lies?

a. when                   b. therefore             c. because               d. since

29. Take a map with you _______ you lose your way.

a. if                         b. in case                c. so that                 d. so

30. The play was very boring, _______ they walked out.

a. so                        b. if                        c. when                   d. while

31. He hasn't written to us_______ he left.

a. when                   b. for                      c. because               d. since

32. I never take and umbrella_______ it's raining heavily.

a. unless                 b. if                        c. otherwise            d. or

33. He got a new alarm clock_______ he'd get up on time.

a. because               b. and                     c. so that                 d. so

34. He agreed to go climbing_______ he hated heights.

a. despite                b. in spite of           c. so                        d. although

35. I couldn't unlock it_______ I had the wrong key.

a. when                   b. while                  c. so as                   d. because