1. 'Therefore the pattern of resource use will be determined by the relative cost of <br/><br/> resources' <br/><br/> 'Therefore the pattern of resource usages will be determined by the relative costs of <br/><br/> resources' <br/><br/><br/> Can you tell me which one of the two is grammatically better and more <br/><br/> idiomatic? <br/><br/><br/> 2. 'Please help me improve my english' <br/><br/> In this sentence I omitted 'to' in front of 'improve' is that ok? Can you tell me <br/><br/> when I am allowed to do that? <br/><br/><br/><br/> Thanx and have a most wonderful day