Complete the following sentences as required（根据所给要求完成句子。每小题每空格限填一词）
【小题1】She had to go home early.（改为否定句）
She __________ __________ to go home early.
【小题2】The Indians first invented the numbers 1 to 9 and the way to use them.（改为一般疑问句）
__________ the Indians first __________ the numbers 1 to 9 and the way to use them?
【小题3】Abacuses are very fast and accurate. People still use them today.（合并为一句）
Abacuses are __________ fast and accurate __________ people still use them today.
【小题4】Shakuntala’s brain took fifty seconds to find the answer.（保持句意不变）
__________ __________ Shakuntala’s brain fifty seconds to find the answer.
【小题5】Do me a favor.（改为反意疑问句）
Do me a favor, __________ __________?
【小题6】do, the, know, numbers, of, about, what, you, language（连词成句）
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