All substances, ______, liquid or solid, are made up of atoms. A be they gasesB whether they are gasesC they are gasesD they can be gases为什么选A? B为什么不行?
While we'll learn a lot with the great instruments we have aboard the
rover, it may very well require the
far more well-equipped laboratories and delicate instruments back here on Earth
to tell us whether our samples carry
evidence that Mars once harbored life.
请问老师们,这句话中it作...
You usually do not need to take pills for vitamins, _____ can be
obtained from the food you eat.
A. most of the vitamins
B. most of which
C. as most of which
D. most of them
请教各位老师,这道题是否选B,谢谢。
以下表达方式中的to都是介词,根据句意的需要,后面可以接名词、代词或者动名词(即动词的-ing形式),不能接动词原形。admit to 承认apply oneself to 致力于apply to 适用于be addicted to 沉溺于be attentive to 注意;关怀be equal to 胜任be ...
...n and woman has.....; each man and woman has.....;(把and后面的every、each可否删掉?)问题2; No men and no women in that city have voted against him.(用has还是have? 主谓一致里 这个no 是不是只能接单数名词?)
刚看到这样一个句子,请注意句中的fees very loose:If a tooth feels very loose, your dentist may recommend that it’s taken out. 如何理解这个feel,它应该是连系动词吧?它是什么意思?表示“感觉”,还是表示“摸起来”?但怎么都说不通啊!...
The roof leaks in a heavy rain. 下大雨时屋顶漏水。Heavy rains hindered traffic on the highway. 大雨阻碍了公路交通。The river rose after the heavy rain. 大雨过后河水上涨了。这三个句子,为什么一个用 a heavy rain,一个用 heavy rains,一个用 the heavy rai...