what can you see up in the tree?你能看到树上有什么东西?请问 为什么要用up,词组?

what can you see up in the tree What can you see What can you see? what e___ can you see what's up!i just wanna be where i can see what's up!i just wanna be where i can see you what else can you see?----- ----- ----- can you see? what can you see?I can see a dask. see,see,i,you,can,can,what,swimming,a,pool(?.) see you!can't wait to see what you did! What can you see in the What can you see ______ your right? what can you see in your school What ___things can you see?Some flowers. What can you see () your right What can you see in my What can you see in your room? What can you see in my What can you see in your room?