More and more people ______ the importance of the eco-friendly lifestyle.
The weather isn’t good enough for an outing,is it?—Not at all. We can’t have ________ at this time of the year.
Hurry up! The sky is covered with black clouds. I’m afraid it ______.
Last summer vacation, we ______ many photos when we had a trip to Dalian.
He was so tired that he fell asleep ___he went to bed.[ ]