—?Space travel must be very very expensive.—??????????????????????.?The cost of a seat on the Virgin craft is $ 250,000.

单选题

— Space travel must be very very expensive.— . The cost of a seat on the Virgin craft is

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多选题

—?Space travel must be very very expensive.—??????????????????????.?The cost of a seat on the Virgin craft is $ 250,000.

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问答题

There is nothing more exciting than being allowed to take part in the space travel programme.()

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问答题

must

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单选题

If an obscure abbreviation must be used because of space limitations, it shall be asterisked and spelled out in an unused portion of the image area.

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