All flights_______ because of the snowstorm, many passengers could do nothing but take the train.

单项选择题As the plane flew off towards the mountains in the distance the sound of its engines gradually________ .

单项选择题The farm produced more food than_________ thought possible during World War II.

单项选择题The building looks deserted but there‘s _______to be someone on guard there.

单项选择题She has to work hard to keep the house_____ and tidy with three small children.

单项选择题The old lady______ leaving the store without paying for the goods.

单项选择题How many Vietnamese joined the parades in Hanoi and Ho Chi Minh City

单项选择题Mary sent me a gift and wished me many happy________ on my birthday.

单项选择题What reports have the U.N. Children’s Fund received

单项选择题What caused the one-month delay of the Southeast Asian Nations summit

单项选择题What’s the purpose of the campaign British scientists are launching