Hey, you haven’t been acting like yourself.Everything OK—-________ .

(2014·江西省重点中学协作体第一次联考)—Tom should have been warned not to cheat in the exam—________，but he wouldn’t listen to me

______ nice the fish smells! I can’t wait to taste it.

I think _______ necessary for you _______breakfast.

_______ my notebook, Mom —It’s on the sofa．