1 . England is the largest of the four countries and ___________it is divided roughly into three zones.

A．in convenience

B．with convenience

C．for convenience

D．at convenience

2 . His spare time________use of to learn English________his poor English.

A．has been made , because	B．has been made , because of
C．has made , because	D．has made , because of

3 . The reason__________ their failure you know is__________ they didn't get fully prepared for the experiment．

A．why, that

B．that, why

C．for, that

D．why, because