_________ others whenever you can _______you will feel happy.
| A．Help; and | B．To help, and | C．Helping; so | D．Helped; then |
--- How about the debate held in your class?
--- ______
| A．Why ask? | B．Sounds great! |
| C．It was really hot! | D．I am really looking forward to it. |
Knowledgeable as he is, the expert was unwilling to offer advice to ______ he thought was not qualified.
| A．whoever | B．who | C．whom | D．which |
Don’t ______ life’s small joys while searching for the big ones.
| A．contradict | B．overlook | C．obtain | D．confirm |
Delta, the American airline, is sometimes jokingly explained “Don’t expect your luggage to arrive” because it ______ be very slow.
| A．should | B．must | C．can | D．will |
Life is more than merely trying to achieve thestandards of society but trying to be a good person ______ one’s own standards.
| A．at | B．in | C．on | D．by |