选词填空：将exact，correct，precise，accurate放到合适的位置，完成句子。

______ dress for some ceremonies is necessary for those who always attend them.

Is your watch ______? I suppose it's 10 minutes slow.

Keep this ______ instrument away from insolation（暴晒） and aquosity（潮湿）.

I can't tell you the ______ date, but it should be around Oct. 20.

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