The river _____(flood )when it______(rain).应该用什么时态

Is the boy _____ in the river? The river _____(wind)to the sea _____ will go on the pearl river cruise with you? They spent time _____(swim) in the river. _____（be） there any fish in the river? Yesterday,a child _____(fall) into the river,and died. Is this the river _____ I can swim? can you and your brother _____(swim) in the river? My house is _____ the river.(在……附近) The water in this river is _____ (danger) for us. The Changjing River is_____ _____ any other river in China.The Changjiang River is the longest river in china.同义句改写 _____ _____ _____(一座八百米长的桥) is being built over the river. 汉译英：去河里游泳怎么样?_____ _____ _____ in the river? she often swims in the river用last year 改写 she _____ _____ ______the river ______ _______. the river is the longest in the whole country.the river is longer than ___ _____ river in the whole country. the River the~river~ the river