这些细菌生活在人体内但不会引起任何症状。

The bacteria live in the human body but do not ___give ___rise ___to any symptoms.

那次访问引发了一场富有成果的讨论，其中各种意见被提出。

That visit ___gave ___rise ___to a fruitful discussion in which various opinions were voiced.

经济危机可能导致广泛的失业。

The economic crisis may ___give ___rise ___to widespread unemployment.