Mr. Black, as well as his wife and children, ________ invited to the dinner party last night.
A:was
B:were
C:has been
D:have been
在我国古老传说的人物中,被后人尊称为“人文始祖”的是( )
发展教育和科学,是发展先进文化的重要内容和中心环节。( )
在下列二次根式中,与2是同类二次根式的是( )