题目内容：

It seems that traveling is very important in modern(现代的) life.The fastest way of traveling is by plane.You can travel by plane one day to a place that it took a month or more to get to a hundred years ago.

Traveling by train is slower than by plane.But it has its advantages(优势)．You can enjoy the scenery of the places you're traveling through.Modern trains have comfortable seats and dining cars.

Some people like to travel by sea sometimes.There are large liners or river boats.You can visit many other countries and different parts of your country on them.Ships are not so fast as trains or planes，but traveling by sea is a very pleasant way to spend a holiday.

Many people like to travel by car.You can make your own timetable(时间表)．You can travel three or four hundred miles or only fifty or one hundred miles a day，just as you like.You can stop wherever you wish—at a place where there is something interesting to see，at a good restaurant where you can enjoy a good meal，or at a hotel to spend the night.That is why traveling by car is popular for pleasant trips，while people usually take trains or planes when they are traveling on business.

1.From the passage，we know the fastest(最快的) way of traveling is ________．

A. by sea    B. by train    C. by car    D. by plane

2.If we travel by car，we ________．

A. can't travel fifty or one hundred miles a day

B. can't stop at a hotel to spend the night

C. can make our own timetable

D. can travel to a very far place in several minutes

3.From the second paragraph(段)，we know the modern trains have ________．

A. the slower ways of traveling

B. few travelers

C. comfortable seats and dining cars

D. comfortable seats

4.When people travel on business(出差)，they usually take ________．

A. a train or a plane    B. a boat or a train

C. a car or a boat    D. a plane or a car