Question

All that can be eaten _______ eaten up.

A. are being          B. has been          C. had been           D. have been

Answer 1

B

解析:

本句話中，主句的主語是all,為抽象概念。因此，其謂語應(yīng)用單數(shù)的has been。關(guān)系代詞that引導(dǎo)定語從句，并在從句中作主語。