In the dark street, there wasn't a single person ________ she could turn for help.

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He spoke proudly of his part in the game, without mentioning ________ his teammates had done.

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The country has already sent up three unmanned spacecraft, the most recent ________ at the end of last March.

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Scientists are convinced ________ the positive effect of laughter ________ physical and mental health.

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The village has developed a lot ________ we learned farming two years ago.

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Nathalie suggested the problem worth paying attention ________ at the meeting.

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In such dry weather, the plants will have to be watered if they ________.

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The school's music group will be giving a big show tomorrow night and two ________ on the weekend.

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It's hard for him playing against me. I've got nothing to play for, but for him, he needs to win so ________.

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Work gets done ________ when people do it together, and the rewards are higher too.

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