---- What are you doing here now? ---- I’m thinking _________ chatting with my good friends.
Half of the class ___ most of the work . Some of the work ___ really difficult .
Now some robots are_______ to do the same things _______ people. A enough smart; as B.enough smart; for C.smart enough; as D.smart enough; with
We have two rooms ________, but I can’t decide _________ __.
--- He didn’t go to the this morning, did he? -______. Though he was not feeling very well.
Don‘t you think ____ necessary for friends to trust each other?