Surveys show that the majority of passengers are pleased that an agreement has been reached to forbid smoking on _________ flights within the continental United States.

单项选择题As the market was _________ goods, the economy became more balanced , and inflation went down.

单项选择题If you have not signed a contract, you are under no _________ to pay them any money.

单项选择题_________very familiar with inspection reports, I realized that some pages of this one were missing.

单项选择题_________a well-balanced diet,________adequate sleep ,is needed for good health.

单项选择题Accustomed to the coffee from Columbia________Governor John said that ________coffee should always be strong.

单项选择题The businessmen discussed the contract_____________but never actually signed anything.

单项选择题Why has the number of camels in India been decreasing in recent years

单项选择题What is a symptom of multiple sclerosis

单项选择题What do the two speakers probably do for a living.

单项选择题Which counties spent billions of dollars to develop new oil fields