We can no longer ____to consider water an almost free resource that we can use as much as we like.
Remember __________ the book when you have finished it.
—Robert is indeed a wise man. —Oh, yes. How I regretted __________ his advice!
Jiaxing is such a beautiful city that it is well worth __________.
You can't imagine the difficulty he __________ into the cold river and saving the drowning girl.
Lydia doesn't feel like __________ abroad. Her parents are old.