Only when I 
left my parents for America ____ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
The thief the two policemen who were holding him.
| A．broke out | B．broke away from |
| C．broke into | D．broke down |
They couldn’t get out of trouble by themselves _________ they tried to.
| A．as if | B．now that |
| C．even if | D．in case |
______ to caring for the poor, Mother Teresa is greatly respected throughout the world.
| A．Having fully devoted | B．Having been fully devoted |
| C．To have fully devoted | D．Being fully devoted to |
We all admired Linda very much. ______ her prettiness, she was smart and helpful.
| A．Rather than | B．Aside from |
| C．Due to | D．Except that |
Was it by holding the pro-environment campaigns ______ the company attracted wide publicity?
| A．what | B．where | C．which | D．that |