More time should be (spend) in doing exercise

More time should be (spend) in doing exercise We should spend more time doing outdoor exercise in our dail We should spend more time --- our family. I should better spend more time reading We should spend more time with them in our real life.这个句子spe we should spend more time in work 这句话的语法错误是什么 —Taking in less fat and salt and doing more exercise must be sb spend some time in doing sth sb.spend time(in)doing sth. sb spend time mony in doing sth spend more time in learning to? sb should be doing in doing