In order to be precise, you should always try to rephrase your sentence if "that" does not follow the object it really refers to. If that does not folllow the object replacing "that" with "the one that" or with

the warmest of greetings = the warmest (possible) type of greetings, the warmest kind of greetings, the warmest form of all possible greetings the whitest of cloth = the whitest type of cloth the best of luck = the best possible outcome of luck We

countable is something you can count, as simple as that countable nouns have plural form (unless they are plural already) All nouns you've mentioned are usually uncountable, but some of them may have countable meaning. Before deciding if one

It says it all you wanted to know "There are van der Waals' forces between chains that are weaker forces in LDPE." that are weaker forces = they are weaker forces (LDPE = low-density polyethylene) Chains are not forces, chains are

'In three hours, I don't know what should I do' incorrect grammar, unless there is a special reason within the style but it does not apply here 'In three hours, I don't know what I should do' is correct but the meaning is

yes and no The meaning might be the same, but the association, style, intention... make only first one true to the point. "Waste" has a larger scope of meaning than "throwing away" which is meant in all three sentences. In

If it happened is potential mood or potential mode: it didn't happen but what if it did, or it didn't happen now but what if it happens once. It is raining. I wish I had an umbrella (but I don't). This version: So many have wondered

Well if you say I've washed my pants several times, but I just can't get the oil stains out. I know that you mean you had oil problem and now dark moments :o) on your pants. So you have a problem with stains whose origin was oil. I would

It is difficult to understand what is the question so I will answer all of them. Technically you would say (a) At the end of the contest, prizes were given to the three best drawings in each category. The prizes consisted of trophies and prize

Why don't you start out early so that you don't have to hurry? Present-present here suggests instead, replacement, doing something instead of something. Better example: Why don't you take your car so that you don't have to walk? If