．Just as Professor Scotti often ____ it, success is ninety-nine percent mental attitude．
| A．gets | B．makes | C．puts | D．means |
It is not enough only ______the rules of grammar if you want to learn English well.
| A．keeping in the mind | B．to keep in mind |
| C．to keep in your mind | D．keeping in your mind |
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 |