a series of waves作主语谓语动词用单数还是复数

take turns后接不定式还是现在分词

牛津高中英语模三p9有这样一句话：The other group members could take turns narrating and holding the pictures. 另外一组的成员可以轮流叙述和举画。句中的take turns后面接的是现在分词，但我的笔记上有take tu...

of-短语作定语时的修饰对象判断

You’ll need several pieces of string of different lengths.of different lengths修饰string 还是pieces of string？如题

新概念3-10： to abandon ship 同位语还是后置定语

The order to abandon ship was given and hundreds of people plunged into the icy water.

More than 50 years可以用作主语吗

More than 50 years has passed since the end of the Second World War,but this is the greatest disaster in human history.

many times 是时间做状语成分吗

You see them many times decorated with red envelopes and messages of good fortune.

especially 前面为什么没有连词

I love all my friends, especially you. 请问，especially是副词强调you. 但是 为什么句子没有连词呢？ 还是说这是进行了省略 如 I like all my friends, and especially I like you.辛苦解释一...

句中两个with短语做什么成分

With the mass production of pencils, they are getting drastically more popular in many countries with each passing decade.句中的with the mass production of pencils 是看做原因状语吗 ?...

as when 可以连用吗

"one," the old man said. His hope and his confidence had never gone. But now they were freshening as when the breeze rises.（海明威老人与海）。为什么句中出现了as when连用？如题

与祈使句连用everybody等是什么句子成分

一般说来，祈使句都以动词原形开头。如：Drive carefully. 小心开车。Be quiet, Tom. 汤姆，安静点儿。Have a cup of coffee! 喝杯咖啡吧!Remember to switch off...