She writes ___ from time to time.

---Is there ___ you don't understand?---I think ___ is quite clear.Thank you.

 — Who would you like to see you off at the airport?—           . Just say “good-bye” at home.

—Let’s go shopping for food and drink. We haven’t got any meat. —Let’s get __________.

Catherine bought a postcard of the place she was visiting, addressed______to _____and then posted it at the nearby post office．