We climbed a tree, and all of a sudden it _______ to us that we were rather big to be up in a tree.[ ]

If it was not an accident, he must have done it

— What a pity!— Yes, I ____ his not trying it, but in vain. [ ]

He is very popular among his students as he alwaystries to make them____in his lectures[ ]

Have all the students know that ourclass will visit the factory this afternoon.— Yes , Every student ________ aboutit.