It is reported that the sandstorm is moving _______ the south year after year.
— Everyone must __________ the security check (安检) before getting on the plane at the airport. — Yes. It’s necessary to ensure the passengers’ safety.
— Where is the School English Speech Contest going to be held tonight? — I’m not sure. Is it in the hall _____ can hold 300 people?
— Do you come to South Korea for the ________ of seeing your family or doing business? — I come here on business.
— A number of people _______ killed by the terrorists at the Urumqi train station. — _______ terrible it is!
— We will certainly enter a good high school _______ we work hard. — Yes. Our dream will come true by working hard.