All the food and clothes must be sent immediately,so that they can be received in time by the people there.
①all the +名词 所有的这些.all the children所有的这些孩子all the pears所有的这些梨
②情态动词的被动语态 情态动词(should、must、can、may等)+be+过去分词
③so that +句子 为的是,以便于.
④in time及时 on time 按时