i saw a boy ()into the river.用fall还是falling?
i saw a boy ()into the river.用fall还是falling?
l saw a little boy fall into the water.是用fall还是falling?
I saw a boy fall off the bike and hurt himself.还是I saw a boy
l saw a little boy fall into the water.为什么不用fell,而用fall?为什么不
fall down(还是into)the river
是用drop into the river还是fall into the river?
they _saw_(saw) a boy_fall_(fall) into the river while they_
Andy saw a man__(rush) into the river to save the boy
i saw her fall into
I saw a boy fall off a bike,这句话saw用了过去式,为什么fall不用?
I saw a boy() draw a picture by the river just now.
Yesterday,a child _____(fall) into the river,and died.