Question 1: When I came to the wedding party, everyone happily __________.

• Answer: A. danced
  (Explanation: The verb "danced" is the correct past tense form, matching the past event of coming to the wedding party.)

Question 2: He willingly agreed __________ for the damage that he caused to my car.

• Answer: A. to pay
  (Explanation: The verb "agree" is typically followed by the infinitive form of the verb, hence "to pay.")

Question 3: Mr. John has just cleaned his motorbike, __________?

• Answer: A. hasn't he
  (Explanation: The tag question follows the same auxiliary verb as the statement and uses the opposite form. "Has" in the statement, so the tag is "hasn't.")

Question 4: This guide will help the learners __________ their difficult exam with flying colours.

• Answer: B. get through
  (Explanation: "Get through" means to successfully complete or pass something, fitting the context of an exam.)

Question 5: The new car which my father bought yesterday is very __________.

• Answer: D. economical
  (Explanation: "Economical" describes something that is efficient and saves money, fitting the context of a car.)

Question 6: The blue house is __________ than the green one.

• Answer: D. larger
  (Explanation: "Larger" is the correct comparative form to compare the size of the two houses.)

Question 7: Peter and Dane are talking about environmental protection.
Peter: "We should limit the use of plastic bags."
Dane: "We can use paper bags instead."
Peter: "__________."

• Answer: B. I completely agree
  (Explanation: The response shows strong agreement with the suggestion made by Dane.)

Question 8: Janet often played __________ violin when she was a child.

• Answer: B. a
  (Explanation: "A" is the correct article used before singular, countable nouns such as "violin.")

Question 9: Newton Grammar School in Vinh Phuc __________ in 2022.

• Answer: B. was established
  (Explanation: This is a passive sentence, so "was established" is the correct verb form.)

Question 10: Mary worked hard __________ pass the examination.

• Answer: B. so as to
  (Explanation: "So as to" is a common structure used to show the purpose of an action.)