高手解释一下下面4题吧.最好每个选项都能分析一下 谢啦!

高手解释一下下面4题吧.最好每个选项都能分析一下 谢啦!1.---Did you hear Tom was scolded for his spelling mistakes in his English composition? ----Yes, but a more careful person__D__ so many mistakes.A wound't make B needn't have made C shouldn't make D wouldn't have made2.A new study shows anger may help people reduce the negative impactc___B___ stress and help you become healthier.A in B of C on D at3.---Shall we attend the concert this evening? --- Great idea,____A___ we can do some shopping first.A if B before C since D when4.Although ____B___ by Xiamen University wasn't far beyond his dream, he couldn't afford the tuition.A having being accepted B being acceptedC to have benn accepted D accepted