Ⅰ.单项填空
1.(2021·天津卷)In the spring,a season we are learning new rhythms of life,many of us find comfort in the natural world.
A.when B.where
C.what D.which
2.(2021·天津3月卷)We all need to get involved in saving energy it's at work,at home,or at school.
A.unless B.once
C.whether D.because
3.(2020·天津卷)We can't buying a new printer for our company.The one we have doesn't work.
A.take up B.carry out
C.keep on D.put off
