—Perhaps one day I may go on aholiday.
—Yeah,dream on!
relax词性变换。
修饰假期表示“轻松的”，用relaxing。
During the next few days,I have decided to have a good test by taking a walk or seeing a film. I really need to（放松）.
relax的词性变换。
“需要做某事”need to do sth.，所以题干应该使用“放松”的动词relax。
—Jim,let's go out to play basketball.
—Oh,I won't do that _____ I finish my homework.
连词用法辨析。
题干提到“让我们去打篮球吧”，由此推断答语的含义是“直到完成家庭作业才会出去打球”，not…until…表“直到……才……”符合题意，故选B。