My mom was mad at me last night. What should I do?—Please say sorry to her________.

I was born _____ July 20th, 1992. My birthday is coming soon. [ ]

The song __________was created by a funny Korean singer.

Betty will ring me up as soon as she _____ in Shanghai.

______is the Changjiang river in China, do you know?—Yes, it’s about 6,380 kilometers long.