các bác giúp em bài này ạ Mark the letter A, B, Cor D to indicate the word that differs from the other three in the position

các bác giúp em bài này ạ
Mark the letter A, B, Cor D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
1. A. ancient B. advance C. account D. appear
2. A. experience B. efficient C. extensive D. evidence
Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
3. A. timber B. absorb C. climbing D. suburb
4. A. doubtful B. trouble C. amount D. surround
Mark the letter A, B, Cor D to indicate the correct answer to each of the following questions.
5. ________ popular opinion, many Welsh people do not speak Welsh.
A. In spite B. Because of C. Contrary to D. Opposite
6. The little girl started crying. She ________ her doll, and no one was able to find it for her.
A. has lost B. had lost C. was losing D. was lost
7. ” ________ is your motorbike ?” – “It’s a Wave.”
A. What sort B. What colour C. What size D. What make
8. You will have to ________ your holiday if you are too tired to travel.
A. call off B. cut down C. backout D. put aside
9. I’m absolutely no good at all ________ any kind of sport.
A. with B. at C. on D. for
10. ________, the athlete broke the world’s record after two attempts.
A. Surprise B. Surprised C. Surprising D. Surprisingly
11. Speed limits on the road ________ to protect pedestrians as well as motorists.
A. serve B. prove C. succeed D. intend
12. My father is fond of sports. He goes to the Sports Club to watch ________ every Saturday.
A. racing horse B. race horse
C. horse races D. horsing race
13. It’s Grandmother’s birthday tomorrow, so don’t forget to wish her many happy ________.
A. returns B. congratulations
C. anniversaries D. days
14. He told us about his future plans ________.
A. because he wanted some tea B. when we were having afternoon tea
C. after we have had afternoon tea D. although he offered me some coffee
Mark the letter A, B, Cor D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
15. The twins are so alike; I can not tell one from the other.
A. different B. similar C. changeable D. confident
16. Scientists want to find out if there is, or has ever been, life on Mars. They are planning to send people there.
A. get some information B. make a discovery
C. find plants and animals D. carry out experiments
Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
17. The teacher spoke well of Ellen in front of the class for being brave.
A. dismissed B. praised C. honoured D. criticized
18. The accident happened because a simple safety device wasn’t properly fitted.
A. controllable B. easy C. complicated D. cheap
Mark the letter A, B, C or D to indicate the option that best completes each of the following exchanges.
19. – “Make yourself at home.”
“________________”
A. Yes, can I help you? B. Not at all. Don’t mention it.
C. Thanks! Same to you. D. It’s very kind of you. Thank you.
20. -“What do you think of horror films?”
“________________”
A. Oh, my god B. I haven’t seen them for a long time
C. Oh, I find them really disgusting D. I just saw a film last night