Select the antonym of the following bold and underlined word in each sentence in the unit:
I'm not being lazy - I'm just conserving my energy for later.
using up shooting off going out throwing awayTuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
