I was really anxious about you. You _______ home without a word.
| A．mustn’t leave | B．shouldn’t have left | C．couldn’t have left | D．needn’t leave |
So original is this cartoon designed that it ________ a large number of children inland.
| A．adapts to | B．applies to | C．appeals to | D．attends to |
A Korean survey shows that shopping cart handles are the most bacteria-carrying items among some ________used objects.
| A．relatively | B．frequently | C．ordinarily | D．sincerely |
Having worked abroad for several years, Janson wanted to settle down to a _________ job in his homeland.
| A．permanent | B．constant | C．primary | D．thorough |
After the captain left, his assistant Roger and other members of the team stayed behind to _____ any misunderstanding, but they refused to hear complaints(抱怨).
| A．approve | B．polish | C．switch | D．clarify |
I just couldn’t believe you should have made such a silly mistake. Look! You have __________ such an important document.
| A．left off | B．left out | C．left alone | D．left aside |