One of the four underlined parts marked A, B, C, D in each sentence is not correct in standard English. Define them.

 

Stone tools began to be replaced (A) around 6,000 years ago (B) by metal tools, that were (C) used to build instruments (D) and simple machines.

Câu hỏi liên quan

• Mark the letter A, B, C, or D to indicate the correct answer to each question.

  They listened_______ while the examiner gave them the directions.

• Choose the letter A, B, C or D to complete the sentences. "Many buildings __________ in the earthquake"

• Mark the letter A, B, C, or D to indicate the correct answer to each question.

  They forgot about______ them to join us for the summer charity work.

ZUNIA12

• Choose the correct answer to complete each of the following sentences.

  He used to________ his living by delivering vegetables to city hotels.

• Chọn đáp án đúng nhất để hoàn thành các câu sau.

  Her grades have improved, but only…………………

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

  He works at Heathrow Airport,  that is one of the biggest airports in the world.

• Choose the best answer A, B, C or D to complete each of the following sentences.

  I couldn’t live with a person who had such disgusting___________ .

• Choose the best answer A, B, C or D to complete each of the following sentences.

  He seldom goes to the cinema,__________?

• Choose the correct answer to complete each of the following sentences. 

  He looked tired because he___________ for six hours.

• Mark the letter A, B, C, or D to indicate the correct answer to each question.

  He pretends_____poor.

• Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

  __________water is one of the factors that have driven many species to the verge of extinction.

• Tìm giới từ thích hợp để hoàn thành các câu sau.

  Her parents do not approve…………….her living away from home.

• Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

  .- Shop keeper: “______ size do you want?”

  – Customer: “Medium”.

• Choose the alternative which is closest in meaning to the underlined word.

  This organization aims to help the less able in society to lead an independent life.

• Many buildings __________ in the earthquake and many people have been trapped there.

• Choose the correct answer. "Tsunamis cannot  __________."

• The accident ______ while he was driving to the office.

• Choose the best answer A, B, C or D to complete each of the following sentences.

  Who is the ___________of this company?

• Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

  Some sportsmen and women insist that______________ part is more important than wining.

• Choose A, B, C, or D to show the word or phrase that is OPPOSITE in meaning to the bolded.

  Her teachers seriously underrated her academic abilities.