根据句意和首写字母补全单词。 小题1:You must be c______ when you cross streets. There are too many cars. 小题2:Our class is organizing a talent show to r_______ some extra money for charity. 小题3:If you go aboard alone, you will m______ your family. 小题4:Would you mind c_____ the dinner? 小题5:I saw someone cooking in the k________ when I passed it.