A、At least 18 people were injured. B、At least one building in the Japanese capital was damaged. C、Some of the high-speed trains

[22]British police say a second man has been arrested in connection with failed bomb attacks Thursday on the London transport system.
    Officials say the man was arrested Friday in the same south London area where police arrested another suspect earlier in the day. Also Friday police shot and killed a man at an underground train station in the same area Officials say the shooting was linked to the investigation. Police have released pictures of four men suspected of attempting to explode bombs on subway trains and a bus.
    An earthquake hit parts of Japan near Tokyo Saturday. The earthquake injured at least 18 people. At least one building in the Japanese capital was damaged. The Haneda and Narita airports closed temporarily to check for damage. Officials stopped some of the Japanese high-speed trains after the earthquake. [23]Japanese officials say the earthquake did not cause any tsunamis.
    North Korea says it does not need to meet directly with Japan during 6-party nuclear talks next week. [25]The official North Korean news agency reported a North Korean objection to Japan’s demands that the talks include North Korea’s kidnapping of Japanese citizens during the Cold War period that followed World War Ⅱ. [24]A South Korean diplomat said Friday that the talks would involve only nuclear disarmament and not other issues. He said the countries taking part in the talks have agreed that North Korea’s human rights record should not be discussed.
22. How many suspects have been arrested related to failed bomb attacks Thursday in London?
23. What was not the result of the earthquake in Japan?
24. What would be the key subject of the 6-party talks?
25. What is Japan’s demand for the 6-party talks?