I heard a song on the radio. I ____ high and low at the music store, but I can't find it.A. searched B. have searched 请问B答案合适吗？若选用B现在完成时，那么have searched 与现在联系（关系）或影响，结果是什么呢？
The silence of the library is sometimes broken by a sudden cough or the sound of pages _____.A.turning B.turned C.being turned D.having been turned请问如何选择？谢谢！
Each group of athletes has been focused on training to the maximum, working on technique and molding themselves into two potential fighting units per club for the 2007 Boat Race. One set will be in the Blue Boat for each club and one set will race as reserves in Isis, for Oxford, and Goldie, for Cam...
问题一：1.Tom hit back the urge to tell a lie 不定式做同位语2. His refusal to participate in the project surprised her.不定式做定语Participate in the project与refusal不也是同位关系吗为什么不能与第一条一样作为同位语？问题二：Meiling returned from abroad ...
...f greenhouse gases in the world.句子来自2022年高考英语新全国卷的阅读理解题，相关段落如下：Producing
food that no one eats wastes the water, fuel, and other resources used to grow
it. That makes food waste an environmental problem. In fact, Royte writes, “if food waste we...
...上”是 in the menu 还是 on the menu？ 请看2009年高考全国卷II的第10小题：All the dishes in this menu, ____ otherwise stated,
will serve two to three people. A. as B.
if C. though D. unless答案为D。 作为高考题，这里用 in this menu 是不妥的，尽管英美国...
在 Swan 的《英语用法指南》p25 有一句：It was as pleasant a day as I have ever spent. 译文为：这是我度过的最愉快的一天。我的疑问：按语法规定，as...as 应译为“和........一样”，这里为什么按最高级翻译？ I have ever 之类的一般与...
I think these mass extinctions are important evolutionary agents that help shake the system loose,and because they open up large ammounts of ecological space, they probably do allow for greaterevolutionary inventiveness than might have been poetntially possible in a situation of a really crowded wor...