27. 다음 빈 칸에 들어갈 말로 가장 적절한 것을 고르시오.

Pocheon doesn't have railroad station and bus terminal. Gangneung and Donghae have Jeongdongjin Station, but Pocheon doesn't have it _____ Pocheon doesn't have express bus to go to Seoul immediately.

1. but  2. so  3. whether 4. and  5. because