Identify the error in each sentence: I like the fresh air and green trees of the villages which I spent my vacation last year

Identify the one underlined word or phrase that must be changed in order for the sentence to be correct.

In today's competitive markets, even small businesses had better to advertise on TV and radio in order to gain a share of the market.

I don’t feel like buying a ................  in a poke; we’d better check the content.

I suggest we _____ for the cheapest method.

Mark‌ ‌the‌ ‌letter‌ ‌A,‌ ‌B,‌ ‌C,‌ ‌or‌ ‌D‌ ‌on‌ ‌your‌ ‌answer‌ ‌sheet‌ ‌to‌ ‌indicate‌ ‌the‌ ‌word(s)‌ ‌CLOSEST‌ ‌in‌ ‌meaning‌ ‌to‌ ‌the‌ ‌underlined‌ ‌word(s)‌ ‌in‌ ‌each‌ ‌of‌ ‌the‌ ‌following‌ ‌questions: 

In the past, women have confined to the domestic sphere.

Choose the best one:

On behalf ___________ the whole team, he went up the stairs and carried out the opening ceremony.

Mark‌ ‌the‌ ‌letter‌ ‌A,‌ ‌B,‌ ‌C,‌ ‌or‌ ‌D‌ ‌on‌ ‌your‌ ‌answer‌ ‌sheet‌ ‌to‌ ‌indicate‌ ‌the‌ ‌word(s)‌ ‌CLOSEST‌ ‌in‌ ‌meaning‌ ‌to‌ ‌the‌ ‌underlined‌ ‌word(s)‌ ‌in‌ ‌each‌ ‌of‌ ‌the‌ ‌following‌ ‌questions: 

Denise has been burning the midnight oil trying to finish this report, so I reckon she is exhausted now.

When I came to this city, I ________ anyone. 

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

 Strong winds knocked a tree down on the road and created a potential   __________ for speeding motorists.

I am going to walk in the park. Would you like to ............... me company?

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

Mr. Holt's acceptance of the financial executive position is  _____________  his satisfaction with the salary offer.

Did you ____________ early today? 

Everyone here has been to London,  ........   ?

Write the one under line word or phrase — A, B, C or D — that must be (Changed for the sentence to be correct): 

This is the first time Janet has taken so difficult class, but she plans to complete it

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

Ms. Larrington's ________   speech about how to improve customer satisfaction has motivated service specialists across the country.

Knocking on closed doors before entering can be a great way for children to practice _________ behaviors.

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

Unselfishness is the very essence of friendship.

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

Immigration gave Mr. Kim an  ___________  on his stay, allowing him to remain another six months for work.

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

Mr. Henry gave his staff additional training on the new office policy, but several of them were still ___________.

We had to walk home in the end because Jimmy ……………… his car keys

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

The board of directors  _________  agreed to change Two-Tone Media's logo as all the members considered it outdated.