Fire can____ down a lot of trees. It can____ people, too. We must be____with fire. We mustn't____ in the forest. We mustn't play____ fires at home. We mustn't play with matches either.
数字的个数是无限的.
被伊斯兰教、基督教和犹太教尊为“圣地”的是（ ）
