Do you know our town at all—— No, this is the first time that I ____ here.

In my opinion，not all inventions were invented by ________ accident.—Well，you do seem to have ________ point.Inventing needs much time and hard work.

29．—- I wonder how much you charge for your services.—- The first two are free ____ the third costs $30

_______ Jane Miller. Miller is _____ last name.

It’s time _____ class. You must _____ the classroom.