A:to climb; reaching
B:climbing; to reach
C:to climb; to reach
D:climbing; reaching
2016年2月11日,美国科研人员宣布,他们利用“激光干涉引力波天文台”,首次探测到引力波,证实了爱因斯坦100年前所做的预测。回答问题。
下列说法正确的是( )
-- Mum, I have nothing to do in my free time but do homework.
-- My dear, you should ___ a hobby like drawing or taking photos.