[单项选择]You don’t have to pay high prices for air travel any more. There are lots of alternatives to regular, full-priced plane tickets if you can plan far enough ahead. Here are a few of the options.
"No extra" airlines charge very low prices for most flights. These airlines offer the same services as other airlines, but you sometimes have to pay extra for them. For example, you may have to pay for any food or drinks you have on the plane, and you may have to pay extra if you check baggage instead of carrying it on the plane.
Seats on charter (包租) flights are usually sold as part of a package deal with hotel accommodations. You can get great prices on these charter flights, but occasionally you have to spend long hours waiting in airport because charter airlines often own only one or two planes, and one late flight means that all flights are late.
Regular airlines may offer special rates if you book your flights in advance and fly on certain days of the week when they don’t exp
A. recommend particular types of flight
B. describe the variety of flights available
C. illustrate the role of the travel agent
D. explain the differences between certain airlines

[单项选择]You don’t have to pay high prices for air travel any more. There are lots of alternatives to regular, full-priced plane tickets if you can plan far enough ahead. Here are a few of the options.
"No extra" airlines charge very low prices for most flights. These airlines offer the same services as other airlines, but you sometimes have to pay extra for them. For example, you may have to pay for any food or drinks you have on the plane, and you may have to pay extra if you check baggage instead of carrying it on the plane.
Seats on charter (包租) flights are usually sold as part of a package deal with hotel accommodations. You can get great prices on these charter flights, but occasionally you have to spend long hours waiting in airport because charter airlines often own only one or two planes, and one late flight means that all flights are late.
Regular airlines may offer special rates if you book your flights in advance and fly on certain days of the week when they don’t exp
A. regular airlines
B. charter flights
C. "no extra" airlines
D. the full planes

[单项选择]

You don’t have to pay high prices for air travel any more. There are lots of alternatives to regular, full-priced plane tickets if you can plan far enough ahead. Here are a few of the options.
"No extra" airlines charge very low prices for most flights. These airlines offer the same services as other airlines, but you sometimes have to pay extra for them. For example, you may have to pay for any food or drinks you have on the plane, and you may have to pay extra if you check baggage instead of carrying it on the plane.
Seats on charter (包租) flights are usually sold as part of a package deal with hotel accommodations. You can get great prices on these charter flights, but occasionally you have to spend long hours waiting in airport because charter airlines often own only one or two planes, and one late flight means that all flights are late.
Regular airlines may offer special rates if you book your flights in advance and fly on certain days
A. recommend particular types of flight
B. describe the variety of flights available
C. illustrate the role of the travel agent
D. explain the differences between certain airlines

[填空题]They will have you (arrest)______if you don’t pay your taxes.

[单项选择]

W: Have you heard about the air crash that occurred last Wednesday
M: Yes. The newspaper said six crew members and 64 passengers were killed, and 15 others were injured.

How many people suffered in the air crash （　）
A. 85.
B. 70.
C. 64.

[填空题]It is high time that you (pay)（）more attention to your pronunciation.

[单项选择]Why don’t you start out early ____ you don’t have to hurry
A. not until
B. since then
C. so that
D. as if

[填空题]Even if you have good health, you don’t know __________ (20年后是什么状况).