—Why do you ____ very happy this afternoon?—Because we are going to spend the evening at Lily’s house.
Tom Mary took part in the party yesterday, because they were studying for their exam.
---Is the notebook Carla’s?---It _____be hers. It has Mary’s name on the cover.
Baby giant pandas ________ a lot of time ________ their mothers’milk every day.
Excuse me. I _______ I was blocking(挡) your way.
Her shoes are _________ mine.