He ____ a lot of time ____ his homework every day.
You can try_______ second time if you fail_______ first time.
— I visited the Purple Mountain Observatory last Sunday. —______ Why didn’t you tell me earlier?
—What is your mother going to do this Saturday? —I’m not sure. She ______ go to see my grandmother.
The kind lady devoted all her life ______ those homeless children.
—Excuse me. Can you please tell me ______? —Sure. There’s a bookstore on River Road.