Dear me! What a beautiful computer!—My grandma bought ___for my sister and me. It’s ours.

Some words_______ on the blackboard just now.

I find _______ necessary to take some warm and dry clothes with us during the walk.

I hate people _________don’t help others when they are in trouble.

It has escaped mewe stopped in the last class．Tom，would you tell me so that I can go on with my lecture?