"英文中最常见的三种时态为一般过去时、一般现在时和一般将来时。那么在撰写英语论文时，我们应该使用哪种时态呢？其实这与普通的英文论文代写 作文写作无异，具体要取决于你句子的主语。可以参照下面的法则来确定什么时候使用一般现在时！ If you are on a personal relationship, like at home, you'll be able to operate an anti-virus scan on the machine to ensure It's not contaminated with malware. 在客... https://pukkabookmarks.com/story12777726/the-5-second-trick-for-%E5%8C%97%E7%BE%8E%E4%BB%A3%E5%86%99