阅读理解： 结合上下文内容补全填空。操作提示： 通过下拉选项框选择正确的词汇。Successful MarriageSuccessful marriage and love relationships all require simple, practical acts--such as simple conversations and simple gestures. Success in love and marriage depends upon an accumulation(积累) of these simple①to create the foundation for building a②love.Many relationship experts say that adding positive behaviors to the relationship has a much greater impact on couples'happiness. It is easy to understand the essential points of a successful marriage, yet difficult for many couples to practice in their relationship. Here are two ways as examples to deepen your relationship bond, and be a happier couple.Firstly, it is③to accept your partner's uniqueness. We have all had moments when we wished our partner④thinner, wealthier, more romantic, and so on. This is not a realistic hope. We should let go of expectations because it may fail our relationships.⑤, you should show loving acts often. Hand holding, touching, or a midday love email are all small ways of showing affection. According to the research, small gestures have a bigger impact on couple happiness than great, less often gestures.①____A.waysB.wayC.away②____A.lastB.lastedC.lasting③____A.betterB.goodC.best④____A.isB.wasC.will be⑤____A.SecondB.The secondC.Secondly