网址：http://m.1010jiajiao.com/timu_id_1348220[举报]
--Listen! Is Tom singing in the classroom?
--No．It be Tom．He has gone to Paris．
A．may not B．needn’t C．can’t
－Listen! Is Tom singing in the classroom?
－No．It ________ be Tom．He has gone to Paris．
A．may not
B．needn't
C．can't