I failed in the fimal examination last term and only then the importance of studies.
| A．I realized | B．I had realized |
| C．had I realized | D．did I realized |
He ______the person referred to be put in prison.
| A．said | B．demanded | C．agreed | D．thought |
______you I owe a thousand apologies ________having doubted your ability.
| A．For; to | B．To; for | C．For; for | D．To; to |
______at in this way, the present situation about birds flue doesn’t seem so disappointing.
| A．Looking | B．Looked | C．Having looked | D．To look |
_______, I think, and all the problems could be settled.
| A．If you make more efforts | B．Making more efforts |
| C．A bit more effort | D．To have made more efforts |
The TV programme has ______on the children as_______as the old.
| A．a good effect; good | B．a positive effect; well |
| C．a good affect; well | D．affect; well |