It needs ________ hard work to finish this physics experiment.

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________ English is more difficult to master than ________ English.

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—Don't drop it. What do you think it is?

—________ iron? At least it looks so to me.

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He told us a very ________ and ________ story about his life in South Africa.

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All the students will stay indoors unless it ________ later in the day.

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You should do everything ________ you ________.

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The trees in the forest can ________ rain drops from hitting the soil directly, so the soil isn't easily washed away.

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This morning I had difficulty ________ someone ________ that car ________.

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________ , the old man walked out of the office.

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A．A stick was in his hand

B．Stick was in hand

C．Stick in hand

D．With a stick was in his hand

She must be looking forward as much to his return as he himself is to ________ her.

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