C.
David: What did you do onthe Moon Festival?
Susan: It was rainy __27.__we didn’t have abarbecue under the moonlight. My family and Iwent to our tree house together.
David: I know that tree house! We used to play there10 years ago. __28.__ that tree housestill great?Susan: Of course! We did many things there. My parents read a fun story and my brother __29.__ a magic trick.
David: How about the yellow sofa inside the treehouse?
Susan: It __30.__ great before, but it is very old now.And look! I found a blue cap there.Is this blue cap __31.__?
David: No, that’s Tony’s. Mine is red. Did you have agood time?
Susan: You bet! It was a wonderful evening.
【題組】27.
(A) or
(B) but
(C) so
(D) because