____he'll return from New Youk depends a great deal on his health.
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____he''llreturnfromNewYoukdependsagreatdealonhishealth.____he''llreturnfromNewYoukdependsagreatdealon
____he'll return from New Youk depends a great deal on his health.
____he'll return from New Youk depends a great deal on his health.
____he'll return from New Youk depends a great deal on his health.
if 也可以的呀
这种情况下是两者通用的
但是后面有or not 的情况下只能用whether