（ ）There are many ducks ____ the river.A.in B.on C.over

（ ）There are many ducks ____ the river.A.in B.on C.over Are _ ducks over there in the river? A.this B.that C.those D 是The ducks are swimming on the river 还是in the river?是There a There are teo ducks and a boat on the river. there is a river in the picture.there are some ducks and a b There are nine ducks in the river .(用how many 提问） there are some ducks in the river are ducks any in river there the(?) （There are some ducks ）in the river.划线提问 There is a bridge ( ) the river.A.on B.over C.in D.at There ____ some _____ in the river.A is fish B are fish C ar there is a small river ____ the hill.Six ducks are swimming