| 1. 语法填空 | |
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They are determined
(recycle)
their garbage because they care about the environment.
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| 2. 语法填空 | |
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The research (lack)
solid evidence, and therefore, its conclusions are doubtful.
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| 3. 语法填空 | |
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Can you tell the
pupils why ships are able (float) on the sea?
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| 4. 语法填空 | |
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I haven't seen Sara
since she was a little girl, and she has changed recognition.
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| 5. 语法填空 | |
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Only when
agriculture is fully developed can industry have (sufficiency) materials and markets.
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| 6. 语法填空 | |
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Mankind has always
been keen exploring and learning more about the
world we live in.
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| 7. 语法填空 | |
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Do you know who is
the first person that got (marry) in space?
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| 8. 语法填空 | |
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Astronauts' bones
and muscles can get very weak due the lack of gravity.
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| 9. 语法填空 | |
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As we know, (send) people to other planets is not an easy
task.
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| 10. 语法填空 | |
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Though they met
with a lot of difficulties on the way, they didn't give .
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