In conclusion, plenty of money should, to sum up, be invested to repair the kilometer-long tube in near future. A. plenty of B. to sum up C. kilometer D. near future

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In conclusion, plenty of money should, to sum up, be invested to repair the kilometer-long tube in near future.

plenty of

to sum up

kilometer

near future

Giải thích

Đáp án B

- To sum up: Tóm lại

- In conclusion: Kết luận lại

Vì trong câu có “In conclusion” nên ta bỏ “to sum up”

ð Đáp án B (bỏ“to sum up”)