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English 13 Online
OpenStudy (anonymous):

What is a fast lens?

OpenStudy (solomonzelman):

a past tense of a verb. EXAMPLES below: ~ I \(\normalsize\color{blue}{ \rm took }\) Caluculus I before in school. ~ I \(\normalsize\color{blue}{ \rm was }\) doing poorly on my History homework. ~ You \(\normalsize\color{blue}{ \rm missed }\) that show?!

OpenStudy (solomonzelman):

IT is a verb that says that something already occurred before, or someone already did an action.

OpenStudy (anonymous):

Fast lens. Not past tense.

OpenStudy (solomonzelman):

ohh, I thought it is a typo, sorry. you know what a lens is?

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