下图为我市某中学初一年级开展“思灾难学应对之道, 重细节立安全之校”的主题活动,围绕活动开展了安全知识讲座和安全疏散演练。这些活动的开展 ①有利于增强未成年人的自我保护意识②体现了对未成年人的社会保护③有利于未成年人掌握必要的安全知识和自救方法④有利于营造安全、和谐的校园环境
Few people knew how to use the Internet in the past,_____?
—What should we do before we use the blender? —I think we must read __________.
—How long ago ______ you ______ the English Club? —I ______it since two years ago.
Would you like to go ________?
—Will you come______have a drink with me? —I’d love to, _______I’m too busy these days.