Question

There will be a twenty-minute break during the performance, ______ people can go to the restroom or buy some snacks.

A．that

B．where

C．when

D．which

Answer 1

C

這里考查非限制性定語從句，定語從句修飾a twenty-minute break（20分鐘的休息時(shí)間），所以用when引導(dǎo)定語從句。句意是，在表演中將有20分鐘的休息時(shí)間，這時(shí)人們可以去休息室買點(diǎn)零食。