Residents in the remote area have ________ about what the disease is all about, not to mention prevention and treatment
—Must I return the book tomorrow?—No, you ________.You can keep it for three days.
The Olympic Games is held ________.
Hainan is a very good island.It's the second ________ island in China.
The accident happened ________ a cold winter morning.
—________ fine weather it is today!—Let's go for a picnic.