Customers often remain（）to a business that has excellent service even if their prices are high.

单项选择题To be deductible，the dominant motive for incurring an expense must be（）the relationship to a business activity.

A.to reduce income taxes
B.tax avoidance
C.the intent to earn a profit
D.personal

单项选择题The responsibilities of a food and drug administration bureau is（）.

A.to set up rules about the use of pesticides and enforces them all over the country.
B.to make sure any hole that might allow pests to enter a building should be filled.
C.to check that doors and windows are completely closed.

单项选择题Why is it necessary for supervisors to make a list of pest control measures？（）

A.To follow state and local health laws.
B.To be carried by employees.
C.To help control pests and help prepare for any inspection.

单项选择题Outer walls are built（）.

A.to prevent pests from entering a building from outside.
B.to protect rice and wheat from rain and wind.
C.to block the growth of plants.

单项选择题From the text，we know that like chlorine，iodine or bromine are all（）.

A.foods
B.chemicals
C.fruits

单项选择题Where，according to Pest control experts，should poisons never be used？（）

A.Where food may be contaminated.
B.Where there are few rats.
C.Where children may get hands on them.

单项选择题-Hello，is this the Sail Moving Company？-（）

A.Thanks，I′m here.
B.Yes，thanks for calling.
C.Hello，what did he say？

单项选择题What kind of mistake did Tom make？（）

A.He went to the wrong kind of shop.
B.He didn′t try on all the glasses in the shop.
C.He thought that a person who had not learned to read would be able to do so if he wore glasses.
D.He left his money in the restaurant

单项选择题The shop Tom went into sold（）.

A.drinking glasses and cups
B.glass for windows and doors
C.glasses for people who could not read
D.glasses for people who could not see well

单项选择题The old people in the restaurant read their newspapers（）.

A.with glasses on
B.with glasses off
C.with glasses of beer in front of them
D.with glass pipes in their mouths