Ⅱ.Vocabulary and Structure (15 points)Directions: There are 15 incomplete sentences in this section. For each sentence there are four choices markedA,B, C and D . Choose one answer that best completes the sentence and blacken the corresponding letter on the Answer Sheet.6-. —Did you find the film boring?

By the time he retires, Carl ______ president for 15 years at the university.

The pipe in the kitchen is broken. We should have it ______ as soon as possible.

Every time I met her, she would show her concern ______ me and my family.

Mary demanded that he ______ the books he borrowed from her a month ago.

We have to accept the fact ______ there is a shortage of qualified teachers in the countryside.

There are enough night schools in this city. Adults can be educated no matter ______ old they are.

Those ______ are willing to help others are likely to be popular among people.

Many young people have stopped ______ newspapers because they read the news online now.

Susie's experience is unusual ______ she travelled 20 countries in only one month.

The company has 80 staff members, ______ 15 foreign experts.

The young mother ______ ever gets a chance to study, except when the children have gone to bed.

the result of the exam, she stood at the door of the classroom, disappointed.

Natural gas can serve as an ______ to coal and oil because it is more environmentally friendly.

The librarian did some careful checking and found several books ______ from the shelf.