1．I believe in him．He is the only person can help me out of trouble．
A．which B．who C．whose D．／
2．I need three volunteers， must be strong．
A．one of them B．that C．one of whom D．whom
3．Eric the Red was forced to leave Iceland because he had committed a murder， he got into trouble．
A．for which B．when C．which D．where
