--How often do you go to the library?--______.

A. In two days   B. Every few days   C. Each third day   D. Every a few days

--How often do you go to the library?--______.

A. In two days B. Every few days

C. Each third day D. Every a few days

   –How often do you go to the library?

   --______.
A. In two days                   B. Every few days

C. Each third day                 D. Every two day

—How often do you go to the library?

—________.

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