Tooth brushing was common by the 1930s, after which toothpaste sales leveled off even thought the advertising, of course, continued.
句子里after后面的句子是名词性从句吗?如果翻译成"在哪个牙膏销量趋于稳定后…"的话,把which改成some可以吗?
He liked a wild life and Peru was much more like the country of giants where Tom had found him, than any place the big man had since visited.麻烦老师们帮我分析下since在这里的用法。这里的since可以理解为ever吗?
We usually go far a walk after supper if there _________ a good program on TV.A. isn’t B. wasn’t C. won’t be D. wasn’t going to beA 项 这里从句用一般现在时,主句也可以用一般现在吗?
What a shame that aspiring young women
who already face ample challenges of discrimination, stereotyping and glass
ceilings still have to contend with these Neanderthal views. 类似于what a pity that这种结构引导的从句,是等于it
is pity that吗?