-- Who’s singing in the next room? --- It ____ be her . She went to New York yesterday evening
The Reed Flute Cave is praised _________ the Art Palace of Nature.
Happy Sheep is a famous character in Chinese _________.
What a good _________ you’ve given me! Thanks a lot.
I study for a test ___________ working with a group.
-- How does John usually go to school? --- He ________ ride a bike, but now he ________ there.