高中英语题请求帮忙HIS IS THE FIRST TIME THAT I ( )HERE A.AM B.HAVE BE

this is the first time I ___ here.A.am being B.have been It is the first time that I am here/ have been here This is the second time __I have been here.A.that B.when C.i it is the first time that i ()here I am not to blame,for this is the first time that I a silly it is the first time that i have been here 是定语从句么?that做谁的宾语? This is the first time I___ here.a.was b.have been c.came d. That is the first time I have visited the Great Wall and I a This is the first time that I ______(be)there This is the first time that I have been abroad This is the first time that i have come beijing. this is the first time that i have come here;是定语从句的话,它的先行词什么