Is this the river _____ I can swim?

Is this the river _____ I can swim? Is this the river _____ I can swim?A.which B.in which C.that I like the river _____ i can swim and fish. Is this the river _________ I can swim in?这里要填which 还是that 还 is this river in which I can swim能不能换成is this river which I 定语从句：1.Is this the river ___ i can swim?A.which B.in which C Is this river __ I can Swim? A.which Bin which can you and your brother _____(swim) in the river? It can swim in the river.It is f( ) It can swim in the river.It is f I can swim in the river 改为一般疑问句 same and I can swim across the river