A、Far away from a man’s home. B、Next to the main vegetable markets. C、Near the supermarket. D、A local man’s market. B定位句指出，有报道称爆

Nigerian officials say a biggest explosion in the city of Yola has killed more than 30 people and wounded dozens of others. Martin Patience is in Logos. An eyewitness said the explosive was so loud it can be heard right across the city. The die in the angel for rush to the local hospitals.
    Reports say the blast was closed to the city’s main vegetable markets. The dry of Yola is not stranger to violence. Its twin has been hit by deadly bomb attacks this year.
Questions 3 and 4 are based on the news report you have just heard.
3. Who announced the biggest explosion in the city of Yola?
4. Where did the blast happen?