Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
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Question: Buses are ____ times as fuel efficient as cars.

Answer: five


Question: Malaria kills up to ____ million people each year.

Answer: two


Question: Green soybeans are usually available frozen and can be stored in a freezer for up to ____ months.

Answer:
six