Choose the underlined part in each sentence (A, B,C, or D ) that needs correcting

Exercise 3: Choose the underlined part in each sentence (A, B,C, or D ) that needs correcting
1. After Mrs. Wang had returned (A)to her house (B)from work (C), she was cooking (D) dinner.
2. Jimmy threw (A)the ball high (B)in the air, and Betty catching (C) it when (D) it came down.
3. Linda has worn (A)her new yellow (B)dress only once (C) since she buys (D) it.
4. Last week Mark told (A)me that he go (B)tvery bored with his present job and is looking (C) for a new on (D)e.
5. Having (A)fed the dog, he was sat (B)down to (C) his own (D) meal.
6. When I turned on my computer, I was shocked (A)to find (B)some junk mail, and (C) I delete (D) it all.
7. They are going to have to (A)leave soon (B)and so do (C) we (D).
8. The boss laughed when the secretary has told (A)him that she really (B)needed (C) a pay (D) rise.
9. The telephone rang several times (A)and then (B)stop (C) before I could (D) answer it.
10. Debbie, whose father (A)is an excellent tennis player(B), has been (C) playing tennis since (D)ten years.
11. I have seen (A)lots(B)of interesting (C) places when I went (D) on holiday last summer.
12. When my cat heard (A)a noise in the bushes, she stopped moving (B)and listen (C) intently (D).
13. I think (A)it’s time you change (B)your way of (C) living (D).
14, Roger felt the outside (A)of his pocket to make (B) sure his (C)wallet is still (D) there.
15. When I’m shopping (A)in the supermarket, I ran into (B)an old friend who I hadn’t met (C) for (D) five years.
16. The police (A) arrested the man while (B)he is having (C)dinner in (D) a restaurant.
17. Peter and Wendy first(A)met in 2006 (B), and they are (C) married for three years now (D).
18. Some (A)people are believing (B) there is life on (C)other (D) planets.
19. Recently, the island of Hawaii (A) had been (B)the subject of intensive research (C)on the occurrence (D) of earthquakes.
20. Every morning, the sun shines (A)in my bedroom window (B)and waking (C) me up (D).
21. The man died as (A)a result of falling (B)asleep (C) while he drives (D).
22. I haven’t finished (A)the report yet (B),but by the time you return (C)I will certainly complete (D) it.
23. Caroline has worn (A)her new yellow (B)dress only once (C) since she buys (D) it.
24. We’ll be cycled (A)to Hoa’s village (B)at (C) this time next (D) Sunday.
25. What will (A)you do (B)when (C) your friends won’t come (D) ?
26. Someone was knocking (A)at the door (B)when I was doing (C) the washing up (D).
27. My friend didn’t drink (A)any (B)beer since we came (C) to live here (D).
28. We have written (A)to each other (B)when (C) we were (D)in primary school.
29. After (A) breakfast, I‘m gone (B)to walk to (C)school with (D) my friends.
30. Did (A)he go to (B)the pop concert next weekend (C) for a change (D)?