The teacher said that Columbus _______America in 1492.
| A．discovered | B．found | C．had discovered | D．had found |
________, you need to give all you have and try your best．
| A．Being a winner | B．To be a winner |
| C．Be a winner | D．Having been a winner |
Before Sally left home, her mother kept telling her to ________ her manners at the party.
| A．notice | B．care | C．mind | D．observe |
She has ________ that I find it hard to believe anything bad of her.
| A．so a lovely face | B．so lovely a face |
| C．such lovely a face | D．such lovely face |
Either you or one of your students ________ to attend the meeting ________ tomorrow.
| A．are; to be held | B．is; being held |
| C．is; to be held | D．are; having held |
The big snow caused great ________ to the people living in the south of China, ________ some of them homeless.
| A．destroy; left | B．damage; leaving |
| C．ruin; having left | D．wound; leaving |