_____ on the subject for half an hour, Liu Ying suddenly stopped. [ ]

—havehad a good time at the party last night，didn’t you!—-N0t really, Actually，it was a bit boring．

He ran out of his home and left the door_____. [ ]

The place _____ interested me most was the Children’s Palace. [ ]

It’s a mistake to think of Chongqing only ______ its tourist attractions.