4. Read the timeline and fill in the blanks by choosing the appropriate past perfect or past
continuous form of verb in brackets
A The children--------------the concept before they answered the questions.(were understanding/had understood)
Answers
Answered by
2
Explanation:
the children were understanding the concept before they answered the questions.
Answered by
0
Answer:
Correct answer is -
had understood.
(because, answered is past perfect).
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