It is usually warm in my hometown in March, but it ________ be rather cold sometimes.
A．must B．can C．should D．would
You can never be ________ when crossing the street．
A．very careful B．too careful
C．carefully enough D．enough careful
________, 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
