natural call/calls me?call应该用第三人称单数,还是原形呢?

natural call/calls me?call应该用第三人称单数,还是原形呢? Excuse me.Natural call if anyone___,tell them i'm not at home 这里为什么要填calls,不能填will call What can we_it?A:calls B:called C:call My father calls her sister and I call her_______. My mother calls him brother and i call him___ She calls sb name还是She call sb name? My mother calls her mother and I call her? 是someone who call还是someone who calls?为什么? 第六题,A.call B.called C.calling D.calls my mother calls her mother and i call hermy mother calls her mother and I call her ____ calls Jack,there is ______for you.A calling B calls C call D a call his father （ ）the boy xiao ming.A,call B,calls C,call it D,call it a natural natural natural natural