Question

---- Who are playing football in the gym now?
---- ________ the students from No. 1 Middle School.

A．They are

B．It is

C．There are

D．That is

Answer 1

B

考查强调句型。强调句型的结构：it is/was 被强调成分that/who其它成分。把it is/was…that/who…去掉句子仍然成立。本题强调主语the students from No. 1 Middle School。在最后还省略了who are playing football in the gym now.故B正确。