Traveling can be fun and easy. A vacation trip to another country is especially enjoyable
Most of us have also had trips that we would (14) to forget. Many conditions Can produce a bad traveling experience. For example,if the four conditions listed above do not exist,we will probably have a bad experience, (15) at best a difficult (16) . Students who travel to a foreign country to study often have a difficult trip. They usually travel alone. They don't know the language of the new country (17) . They often arrive in the new country (18) a huge international airport. From the airport,they need to find their way to their school. Maybe they need to change airplanes,to take a bus,a train,or a taxi. They need to do all this in a country (19) everything is unfamiliar. Later,after the experiences are over,they Can laugh. But at the (20) ,they feel terrible.
A. include
B. conclude
C. hold
D. contain