I don’t think there will be many students left in the class，_______，because the conditions are not fit for studying.

Look at the sign. It _________ “No smoking”. —-Oh, sorry, I did not see it.

Would you like some coffee? — Yes, please. Do you have any milk? I prefer coffee _____milk. [ ]

__________ Tim’s help, I found my pet dog in the end. I should say thanks to him.[ ]

I am not sure if youin the exam, but you will be better if youharder.