【题目】If you want to go further in the new sport, the best way is to ______ and practise more frequently.
A. dive in B. drop out
C. catch on D. spring up
在线课程【答案】A
【解析】考查动词短语辨析。A. dive in 潜心做某事；B. drop out退学；C. catch on理解，明白； D. spring up出现，涌现。句意：如果你想在新运动方面更深一步，最好的方法就是潜心研究并且经常练习。根据句意选A.