He is in ________ control of the company. I mean the company is in ________ control of him.

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________ the end of last month we had an English party.

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--Susan, go and join your sister cleaning the yard.

--Why ________ ? John is sitting there doing nothing.

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________ it is to have a cold drink on such a hot day.

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I don't think ________ possible to master a foreign language without much memory work.

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I'm ________ I've seen somewhere before the boy ________we met just now.

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A big stone rolling from the hill hit him on ________ head.

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It's been many years ________ he worked here.

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--What have you ________ hydrogen, Mary?

--Balloons.

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Several weeks had gone by ________ I realized the painting was missing.

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