He should move on to the next point, and not harp one sting only.
Correct answer C. harp upon one string only
Tip: press A, B, C or D to answer, and N for the next question.
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See allNo sooner he had returned home then his mother felt happy.
Correct answer C. did he return home than
You are warned against committing the same mistake again.
Correct answer D. No improvement
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If you are not clear about the meaning of a word, it is wise to look to a dictionary.
Correct answer C. look up
Realising is the significance of technical education for developing country, the government laid aside a large sum on it during the last plan-period.
Correct answer B. set aside
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