61/ ____ unemployed, Jessica is having a hard time making ends meet.

a To be

b Being

c Is

d Be

62/ Workers are expected to wear newly ____ protective clothing.

a purchase

b purchasing

c purchased

d purchases

63/ After hearing about the increase in the minimum wage, Brown, Inc. laid off 30 ____ of its entire workforce.

a percent

b pers

c percents

d per

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1 goes

2 doesn't

1. She doesn't live in London because she doesn't know anyone there. =>She'd live in London if she knew someone there.
2. I can't live in the country because I can't find a job there.
=> I'd live in the country if I could find a job there.
3. I don't have a spare ticket. I can't take you to the concert.
=> If I had a spare ticket, I could take you to the concert
4. The schoolchildren sowed some seeds, but they forgot to water them so they didn't grow.
=> If the children had watered some seeds, they would have grown
5. They don't understand the problem. They won't find a solution.
=> If they understood the problem, they would find a solution
6. He sits around too much. He isn't fit.
=> If he were fit, he wouldn't sit around too much
7. Carol didn't answer the phone because she was studying.
=> If Carol hadn't been studying, he would have answered the phone.
8. Rita is exhausted today because she didn't get any sleep last night.
=> If Rita had slept last night, she wouldn't be exhausted today (if mix)
9. She's very thin; perhaps that's why she feels cold so much.
=> If she weren't very thin, she wouldn't feel cold so much. (có thể sử dụng wasn't)
10. He never polishes his shoes, so he never looks smart.
=> If he polished his shoes, he would look smart.

Giải thích giúp mình với nhé. 

gone to school since May

eaten a delicious meal like this before

 11. I don't leave anything behind, do I?

12.Anna is bringing some wine, isn't she?

13.Jack'll be home before midnight, won't he?

14.Marry was working in Bristol then, wasn't she?

15. You know who invented the wheel, don't you?

16. You don't need me anymore, do you?

17. The ticket to London doesn't cost a lot, does it?

18.Jane invited the Smiths last Sunday, didn't she?

19. They aren't too busy to go out, are they?

20. Jean built a restaurant last year, didn't he?

\(\text{#♪◈₰♣}\)

Choose the best answer to complete each of the following sentences.

1. At the news conference, several reporters didn't get clear answers to _________ questions.

A. theirs

B. their

C. his and hers

D. his and her

2. Every who __________ a ticket should be in this line.

A. don't purchase

B. doesn't purchase

C. hasn't purchased

D. haven't purchased

3. There _________ in the world today.

A. is many new computer company

B. is many new computer companies

C. are many new computers companies

D. are many new computer companies

4. The quality of these recordings _______ very good.

A. is not

B. are not

C. were not

D. have not been

5. What ________ you used in picking a winer in the art contest?

A. is the criteria

B. are the criteria

C. are the criterion

D. are the criterions

1.She hasn't performed for ten years ago.

2.He spent nearly two hours doing the washing up.

3.It took him two hours to study for the test.

5.I last worked for him six months ago.

10.They spent two hours finishing their homework.

12,I haven't seen him since I was in high school.