Everyone knows that ______ is dangerous to play with fire, but ______ is difficult is to prevent children from playing with fire.

下列各组词语中没有错别字的一组是（ ）

What are those _______ people screaming for— Don’t you know Deng Chao and Sun Li are here on the stage(舞台)! Their show is so _______!

Tom usually reads English 6:00 every morning.

What do you think our chairman will do in the meeting—He _____ give a speech, but I’m not sure. You know his decisions often take us by surprise.