on one of these ___ he went up the mountain accompanied by old peeper,the town optician ,who witnessed the failure.peeper encouraged bobby to try again and he presented him with a pair of special sunglasses.A experiment B occasions the answer is B,wh
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on one of these ___ he went up the mountain accompanied by old peeper,the town optician ,who witnessed the failure.peeper encouraged bobby to try again and he presented him with a pair of special sunglasses.A experiment B occasions the answer is B,wh
on one of these ___ he went up the mountain accompanied by old peeper,the town optician ,who witnessed the failure.peeper encouraged bobby to try again and he presented him with a pair of special sunglasses.
A experiment B occasions
the answer is B,why not use
A experiments 忘记写S了
on one of these ___ he went up the mountain accompanied by old peeper,the town optician ,who witnessed the failure.peeper encouraged bobby to try again and he presented him with a pair of special sunglasses.A experiment B occasions the answer is B,wh
其实很简单,看前面的介词就可以分辨出来:
“On an occasion/On one of the occasions” 意思是:在其中的一个场合、一次事件...所以要采纳occasion.
而 experiment 的前面应该是 in,“in an experiment/experiments, we .” 如果要用 on 的话,就要说:We did an experiment on an animal. 不是用 on 作为开头.
而且,在日常用语里头,英语用 occasions 的机会比较多,除非是学术性的形容,那就采取 experiment.
希望帮到你.
one of... 表示“什么当中的一个”,所以这个名词(或代词)一定用可数名词(或代词)的复数形式。
one of these +名词复数, 译为"这些....中的一个".A是单数,所以选B