Usually we don't realize how important nature is to us ______ it is too late.
A: after
B: unless
C: until
A: after
B: unless
C: until
举一反三
- She didn't realize it was too late to go home（）it grew dark. A: while B: since C: until D: after
- Don't _____ too long because we are almost late. A: take B: spend
- I don’t mind ( ) the decision as long as it is not too late. I don’t mind ( ) the decision as long as it is not too late.
- Only when we had finished all the work ________ that it was too late to take a bus home. A: did we realize B .will we realize B: we did realize C: we will realize
- ---You will be late you hurry up. ---Don't worry. I still have enough time. A: ecause B: until C: unless D: if