在业余时间,他既练习画画又弹钢琴(as well as)
你认为谁是这个队里最好的运动员。（插入语、疑问句）
他多么希望能拥有一套余秋雨写的书。（a set of）
我们每四周到农村去看祖母一次。(every)
很明显，他和今天下午来找他的那个人有联系。(be related to…)
不但河里的水而且连雨也被污染了。(not only…but also…)
參考答案:In their spare time. He is also playing the piano practicing painting you think who is the squadron's best athletes. he preferred to have a set of books written by Yu. every four weeks to see her grandmother in rural areas first. Clearly, this afternoon, he approached him and the person associates. but even the rain is not only the river water has been polluted.