Question

--- Where ___________ your pen pals from? --- The United States. A．does ...

--- Where ___________ your pen pals from? --- The United States. A．does B．do C．is D．are

Answer 1

C

本题为问句，意思为你的笔友来自于哪里，be from表示来自于的含义，主语为单数第三人称，故用is，故本题选C。