Необходимо вставить слова на место пропусков. Если слова не даны, то нужно самим по смыслу подобрать. Например, вот так:
I went to the pop concert yesterday!.The atmosphere was fantastic and the main singer was just briliant.To be honest,I don't really like big concerts but this one was really good.My friend Tom, who goes to concert every month.enjoyed it too.toms very musical andat the moment he is trying to play the guitar.