When are the visitors excepted to ask questions?

and asked the driver a very ______ question.

If we ask the class to listen and we ask the questions afterwards, we are helping them improve their listening skill indeed.（）

The professor's classroom manner was quite ______.never revealing the warmth and playfulness she showed in private.

Peter, David and Paul said following sentences:　　Peter: David is a liar, Paul always tells the truth.　　David: Peter is truthful.　　Paul: David is a liar, Peter is truthful.　　Two of these men always tell the truth, one of them sometimes tells the truth and sometimes lies. Which of these men is a liar?

（）is entitled to enter into，with a shipper，any agreement，stipulation，condition，reservation or exception as to the responsibility and liability of the carrier or the ship for the loss of or damage to，or in connection with，the custody and care and handling of the goods prior to the loading on，and subsequent to the discharge from，the ship on which the goods are carried by sea.

Classes at American College　　The year at an American college is divided into 2 semesters or 3 quarters. Semesters are 15 weeks; quarters are 10 weeks. American college students usually attend school from September to May. Occasionally their academic pursuits extend into the summer.　　Students choose their classes a few weeks prior to the start of each term. Universities offer a great many classes in the students’ main area of study and in other areas as well. Students must take both. These include science, mathematics, computer, history and English. Other classes may be just for fun, like dance, theater or sports. Tests usually are given in the middle of the term and at the end3. The final examinations are extremely important. In some classes, the professor asks the students to write a research paper or complete a certain task instead of taking a test.　　Classes usually are organized through lectures. For example, a student may attend 2 or 3 lectures a week by the professor. As many as several hundred students sit at each lecture. Sometimes they also attend a smaller class to ask questions and discuss what the professor says4. These small classes are taught by professor’s assistants. In science classes, students also have a long laboratory class each week.　　What do American students study at college? The US Department of Education says the most popular area of study is sciences and management. Next is social science, which encompasses history, sociology, literature, public relations and political science. English is another popular field of study. Then comes computer science and health and life sciences like biology, chemistry and physics. Education is popular, too. Foreign languages are not popular as a main area of study among American college students. However, students at many colleges must study a language other than English before they can graduate. The most popular foreign language is Spanish, followed by French and German.

May I ask you a question?（）

The professor’ s homework was to ask his students _____.

Of the four possible tune movements, high fall is used for statements and wh-questions; high rise is used for questions asking for repetition of something; low rise is for yes/no questions, etc. and fall rise is for corrections and polite contradictions.（）

A customer calls in, talking constantly without allowing time for the technician to answer or ask questions. The technician decides to place the customer on hold to work on another issue and misses what the customer’s problem was. When the customer is finished explaining the issue, the technician asks the customer to summarize the problem again, which angers the customer. How could the technician have better handled the situation to avoid such a confrontation?（）

Students are usually ______ to the teaching of a strong and imaginative professor.