Forstudentsinmountaineeringclubs,thesummervacationisag...
来源：语文精选馆 1.31W
问题详情：
For students in mountaineering clubs, the summer vacation is a great time to travel far and________ new challenges.
A. take up B. take in C. take on D, take over
【回答】
C
知识点：动词
题型：选择题
