下列句中加点的词语解释有误的一项是（ ）。

(单选题)My textbook has disappeared. Who ______ have taken it? (单选题)英国现在首相是_______。 (单选题)Maybe if I _______ science, and not literature then, I would (单选题)Winston Churchill, ______ life had been tough in school, was (单选题)小学英语语言技能一级的读写目标，除了能看图识字，能在指认物体的前提下认读所学词语和能在图片的帮助下读懂简单的小故事之外， (单选题)我们平常说的英语“双基”教学是指______。 (单选题)判定一节英语课是否有实效，最重要的标准是看是否______。 (单选题)If a=3 and b=4, what’s the answer to the problem: a+2b+1=? T (单选题)The underlined part in the word “expected” is pronounced as (单选题)《英语课程标准》采用国际通用的分级方式，将英语课程目标按照能力水平设为______ 个级别。