1 . The fire, which is thought to have started from the 8th floor, spread quickly through the tower block on Sunday night, leaving people on the upper floors t________. (根据首字母单词拼写)

2 . You can have food ________(递送）to you using food d________ apps and site. （根据汉语提示单词拼写）（根据首字母单词拼写）

3 . Don’t worry. We will keep you ________(了解) of what happens. （根据汉语提示单词拼写）