Is that a boy swimming in the lake? I can't find out _______

Is that a boy swimming in the lake? I can't find out _______ I know that boy .He is swimming in the lake.改为定语从句 is that a dog in the garden?i can not find out ____ it is a The boy is so clever that he can work it out in such a short i can see a fish swimming in the lake的swiming 为什 I could always put up the boy if he can't find the room in t Swimming in the lake is of______ She can’t _______ in the classroom.A.swims B.swim C.swimming There is a boy _____ (swim) in the lake. i couldn't go swimming in the lake.i was very afraid同义句i was The boy can't find a desk to study in his room,so the box ( So _____ that no fish can live in it.A.shallow the lake is B