一、短语填空。
根据语境，用方框中所给短语的适当形式填空。（每个短语仅使用一次）
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be concerned with; reflect on; hold down; upside down; be scared of;
be aware of; be close to; in danger of
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1．It was clear that the ship was ________ sinking.
2．He took a dictionary to ________ the test papers for fear that they might be blown away by the wind.
3 His project ________ applying the technology to practical business problems.
