Make a list of the things you want to buy. ________, you will surely forget some of them.

--I am often weak and tired when I work. -- _________ you have too much pressure. You’d better relax.

---_____ do you go to the cinema?--- Three times a month.

——How often do you go skating?——________.I can’t skate at all.

— Do you know sound travels very fast? — Yes. But light travels         sound.