Though an increasing number of international students are learning Chinese, it may be     1     (对他们而言学好汉语很费力).

    2     (这在语言学习中是常有的事，定语从句),    3     (学习汉语也需要练习). Firstly, it’s of great importance to read     4     (与汉语相关的书籍，定语从句). Additionally, to improve your spoken Chinese, you should communicate more with the     5     (native). The more you communicate with the natives in Chinese,    6     (你就会说得越流利). Aside from that, it’s helpful to watch some Chinese films or TV programs. Finally,    7     (有积极的态度) no matter what trouble you may have learning it.