根据要求完成句子。
[[QOrDeR]]They arrived thereat ten o’clock.（就划线部分提问）
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【小题2】The mountain is very big and very high.（改为一般疑问句）
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【小题3】I went to the park and saw lots of people.（改为否定句）
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【小题4】the sea in went I with at the father weekend my swimming（.）（连词成句）
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【小题5】There are lots of people.（英译汉）
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