语法 > 中阶1
- 另一个,其它 another, other, others, the other, the others
- 一个,这个,没有冠词 A(n), the, no article
- 比较级、最高级的形容词和副词 Comparative and superlative adjectives and adverbs
- 时间介词 during, for, while
- 现在完成时和现在完成进行时 Present perfect simple and present perfect continuous
- 一般过去时还是现在完成时? Past simple or present perfect?
- 将来时——will, be going to, 现在进行 Future forms – will, be going to, present continuous
- 一般现在时或现在进行时 Present simple or present continuous