比如:appear to be/to be doing/to have done和appear to do,前面的appear是系动词嘛?apper to do这里是半助动词还是系动词?如何区分半助动词和系动词呢?比如 be going to/be about to do等这些都是助动词,都是接to 的不定式,为什么这些不能接...
...化,那么时间是否和句子谓语一致呢 ? 2 to do doing done ,主要是to do doing,的用法是固定搭配还是灵活的呢,比如说 let me work 让我工作,那么让我一直工作除了keep me working 外,知否可以直接用let me (to)be working 或 le...
...oads that help us rush through, but we fail
to account for the true costs. Do we really recognise what it costs us as a
society when children can’t move safely around our communities? The authors of
Movement have it right: it’s time to think differently about that street
outside your front door....
Education is irrespective of cast,creed and gender, by gaining knowledge people can stand out as equal with all the other persons from different castes and creed.这里的两个句子之间用逗号是不是有点问题?by gaining knowlege能连接两个句子吗?