I don't think it matters matters 为什么要加s

I don't think it matters matters 为什么要加s I don't think it matters还是I don't think it troubles Why I don't think it ____.A.minds B.matters C.took D.works 四选一,选 ---Don't decide on important matters too quickly.---______.I Don‘t worry .I will ___all my matters before leaving Don't(决定)important matters too quickly I think that will make matters worse . I don't think it's()question. It doesn't matter what others think of you What matters most It doesn't matter what others think of you,what matters most :Why do I have so many matters to choose?I don't want to cho it matters 或者 it doesn·t matter 后面应该加if 还是whether还是什么?