he is swimming across the river改错

he is swimming across the river改错 He is swimming across the river.用across the river提问英语句子 The boy is swimming( across the river). look!he is ____ the river A.swimming across B.swimming throu he is swimming across the river.变否定句、一般疑问句、肯定回答、否定回答急需 请问老师 对He's swimming across the river.中的river和across the rive He had some__________in swimming across the river.(succeed) He was _______in swimming across the river.(succeed) at last he s() in swimming across the river The boy is swimming across the river.变为被动语态 she swimming across the river she is swimming over the river 请问He was so ___ in swimming across the river.(succeed)如何做?