Is Liu Tao swimming in the river?这题哪错了?is下面是A,以此类推.A B C

Is Liu Tao swimming in the river?这题哪错了?is下面是A,以此类推.A B C Is Liu Tao swimming in the river? Is Liu Tao swimming in the river?哪里错了? is liu tao swimming in the rivre 那里错了 改错1.Is Liu Tao swimming in the river?5题英语 Who ____ in the river.A.swim B.swimming C.is swimming Fish usually( ) fast in the river.A swim B is swimming c is 1.He often( )in the river.A.swim B.swims C.is swimming there is a d( ) swimming in the river Some people （）swimming in the river now.A.is 短文填空A young man is swimming in the river. Mary is swimming ___ the river.A、to cross B、crossing C、cross