单项选择题
（）country in the world should do her best to keep the world peace.
A. Each B. All C. Every D. Everyone
单项选择题 We（） 5 hours writing the plan for our work next month.
单项选择题 Hardly （） when it began to rain.
单项选择题 You forget （） it to me. I haven't forgotten （） it to you yesterday.
