题目

根据语境，从方框中选择恰当的单词填空，并将正确答重填在短文后的横线上。 tried，us， wishes ， correct， how Helen is my good friend. She taught【1】 English when I attended a training course two years ago. Helen was always ready for the lessons, and she 【2】 her best to make her classes lively. I used to be poor in English, especially in written English. But now I'm able to write letters and reports【3】 in English. I still remember【4】 she helped me with my English patiently. Teachers' Day is coming. I'm going to send her a card and give her my有关物质颜色的叙述中不正确的是（ ）A．纯净的铁片是银白色的B．铜是红色的C．硫酸铜溶液是蓝色的D．氯化亚铁溶液是黄色的