I wanted to see more of the world.There were eighty of them.I have plenty of time.老师，数词+of,more of,plenty of..如何理解，of是介词，含有of的介词短语一般是作名词的定语的，A glass of，a bottle of,A piece of 一般是量词？
...; and said millions of British families were "in for a very difficult time in the months ahead". 影子财政大臣乔治·奥斯本称这是“戈登·布朗执政记录中的决定性时刻”，并说数百万的英国家庭“在未来数月将处于非常困难的境地”。
辅导班的一道题：
The girl _______ (joke) when she said there was no milk left.
A. joked B. was joking
我根据《麦克米伦高阶英汉双解词典》中 joke 词条的 be joking（开玩笑）中的例句：
I thought he was joking when he said he'd resigned. 他说他已...
...n the same univeristy. 自从我们"离开"了同一所大学...以上since从句要理解成“否定”含义，但是，同样的since
was...结构，如下，理解却要和上面完全相反：I
have lived here since I was a child/since I was yong/since I was born/since I
was 7 years old: 却...
The main reason for these is that the thermal conductivity of the modified SC in the Structure II is smaller and its specific heat capacity is larger than those of sand gravel in the Structure I (Table 2).The main reason for these后的系动词是不应该使用are，应为我觉得that后面接了...
...n in the wild.请问老师：1 句子中有三个that做remembered的宾语从句，第二个and that可以理解，但是and that后面是despite的介词短语，第三个that不就是多余了吗？despite her not thinking he was ready, he knew everything he needed to survive on his own in the wi...
Cloning can bring many benefits to the human, such as rejuvenation, curing liver failure, kidney failure and leukemia.请问句子中的 the human 用得对吗？我们可以用 the human 来表示“人类”吗？