I’m studying tourism with a（）on environmentally friendly travel.

单项选择题Which of the following sentences are correct？（）

A.An increase in demand is likely to cause a rise in prices.
B.Increases in demand usually lead price increases.
C.If demand increases；as a result，prices tend to rise.
D.Increases in price are often resulted by increases in demand.

单项选择题What apparently had happened，three years ago，was that Kate（）to a different building.

A.went
B.has gone
C.had gone
D.would go

单项选择题His writing has improved but there is still （）for improvement.

A.zone
B.area
C.room
D.place

单项选择题By the time you arrive in Beijing.I （）for shanghai.

A.have left
B.will leave
C.will have left
D.have been leaving

单项选择题I decided to depend on myself.Therefore，I（）their offer to help.

A.decreased
B.declined
C.declare
D.denying

单项选择题Emma was treated as a special guest and was（）with gifts everywhere she went.

A.showed generously
B.paid generously
C.respect generously
D.present generously

单项选择题There have been（）that he may take up coach（当教练）.

A.suggestions
B.tips
C.points
D.signals

单项选择题He wasn’t really drunk，He was just（）.

A.getting dressed
B.losing consciousness
C.pretending
D.was becoming aware of it

单项选择题The （）sends current to the starter when the driver turns the ignition switch to start.

A.battery
B.evaporator
C.engine
D.brake

单项选择题The function of the （）is to reduce vehicle speed and to stop the car.

A.body
B.engine
C.brake
D.chassis