David sends (two emails) to his friend every week.对括号里的部分进行提问-_____ _____ emails ____David____ to hisfriend every week?

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David sends (two emails) to his friend every week.对括号里的部分进行提问-_____ _____ emails ____David____ to hisfriend every week?
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David sends (two emails) to his friend every week.对括号里的部分进行提问-_____ _____ emails ____David____ to hisfriend every week?
David sends (two emails) to his friend every week.对括号里的部分进行提问
-_____ _____ emails ____David____ to hisfriend every week?

David sends (two emails) to his friend every week.对括号里的部分进行提问-_____ _____ emails ____David____ to hisfriend every week?
How many emails does David send to hisfriend every week?

how many emails does david send