原句:When you buy apples at the store, your choice is limited to the 12 or
more kinds available for sale.老师们,请问这里:1. Your choice,为什么是个单数形式,这个属于特指还是泛指呢?2. your choice is limited是个什么结构?后面的to.....又作什么成分...
... see/hear等。I can see a ship.比I am able to see
a ship.更自然。Can you knit?比Are you able to knit?更自然。4. L.G.Alexander:“can+动词”表示天生的能力。表示天生的能力时,can和am/is/are able to通常可以互换,但able to用得较少。不过,谈到说话时正...
请问这个句型里除了have difficulty (in) doing…外这里的 trouble / difficulty 可以理解成不可数,所以可以不用加不定冠词 a 或变复数,那有 have problem (in) doing...吗?查了查有人说可以,有人说该加 a 或变复数 problems。我想问的是有这个...
...请教老师,以上两个句子正确的话,seem 后可以把to have done换成todo吗?具体该如何理解?(3)The problem seems to be solved.(4)She was amazed by my progress, which seemed to be made overnight.请问3、4两个句子正确吗?这时不定式动作是在谓语动...