I usually walk to school, but ____ bus when it rains.
Leave the reference books behind, _____ you won’t be able to think independently.
Alex did the project on community service ______ better than his classmates.
Rose received a letter full of love from her parents on her ______ birthday.
There was a big crowd waiting _____ the opening ceremony to start.
I love this picture ______ you beside the music fountain.