Choose the correct words to complete this confused tourist's postcard home.

"Dear Mom, I finally made it to Paris! There are so many beautiful sights here. The locals are friendly, and they're always willing to help with directions. I visited the Louvre yesterday and saw their famous Mona Lisa. Wish you were here!"

The correct answer for the first blank is There.

"There" is used to indicate existence or location ("There are so many sights"). The correct answer for the second blank is they're. "They're" is the contraction of "they are" ("they are always willing"). The correct answer for the third blank is their. "Their" shows possession ("their famous Mona Lisa" = the Mona Lisa belonging to the Louvre).