When I was 15, my family moved to Washington. I tried skateboarding there, but the locals were far less welcoming. Within a couple of years, I'd given it up. [摘自2021全国卷甲,C]请问上面语境中的句子within a couple of years, I'd given it up为什么使用过去完成时态表达。...
...7页，外语教学与研究出版社出版发行，2000年9月第1版：
The burglar was surprised by the family coming home
unexpectedly. 入室作案的窃贼因那一家人突然回来而吃了一惊。
I’m surprised at / by your attitude. 我对你的态度感到奇怪。
更多例句如...
...习惯) spills over intoand is often reinforced by religious beliefs and other customs so that, for example, a Jew, whose religion forbids the eating of pork, might have guilt feeling if he or she ate pork. 红色部分如何翻译？词法及语法如何理解？
That’s surprising. Usually she’s a
very cautious driver and obeys all the traffic laws. She must not have seen the
sign.这个句子中的 must not
have seen用得对吗？这里显然是表示推测耶，怎么用must的否定式呢？
The technology giant reported quarterly sales of $50.56bn (£34.39bn) down from $58bn last year - the first fall in sales for the company since 2003.请问：(1) 句中的意思是quarterly sales从58降到50.56吗？(2) 如何表示“降了多少”（即“降幅”）？
I cannot beginto imagine what would have happened had my mistaken identification occurred in a capital case.本句句子成分不会划分（主要是红色宾语从句部分不会解析），盼望老师指点教诲，谢谢谢谢谢谢老师了。