_____ along with host families, I believe, language travel students are likely to get enough language

practice.   [ ]

A. Stayed      

B. Having stayed   

C. Staying    

D. To stay

刚进入中学，小华感到对周围的一切都不适应。看着周围一张张陌生的脸，小华有些紧张。每当看到同学们在一起说笑的时候，他便感到自己很孤独，觉得自己太内向，不善言辞，不敢主动与同学打招呼，恨自己太不活跃。假如你是小华的好朋友，面对这一情况，你该怎么办？

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