In such dry weather the flowers will have to be watered if they _____.
He _________ to go through the hard times and finally became a famous artist.
It is well known that biology is ______ science about living things.
----May you _______ the experiment! ----Thank you very much.
---Never give up and you'll succeed.---Thank you. i won't ______ you.
All of the flowers now raised here have developed from those _______ in the forest.