His words remind me ________ we did together during the past holiday.

[　　]

Computers must be of great use to ________ doing the scientific research.

[　　]

The head teacher always asks ________ students to be strict with ourselves in everything.

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________ children are still playing games outside.

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I sent invitations to 90 people, ________ have replied.

[　　]

Johnson is a New Yorker; ________ is, he lives in New York.

[　　]

—He was nearly killed by a car once.

—When was ________ ?

— ________ was in 2000 ________ he was in a middle school.

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I prefer a street in a small town to ________ in such a large city ________ Shanghai.

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As ________ announced in today's papers, the Shanghai Export Commodities Fair is also open on Sundays.

[　　]

All ________ is a continuous supply of the basic necessities of life.

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