Last summer holiday we spent the ____ few sunny days on the seaside.
Topics for textbooks and conference books should be_______ to the experiences and interests of the students.
We spent many years studying the formation of rocks, experiencing many sufferings and even dealth .But our hard work _____in the end, and we made it.
She don't know how she ____ the first couple of months after her husband’s death.
Keep an optimistic and positive attitude — Don't put yourself to any _____
It is the idea____smiles can get rid of cold ____has been proved by the researchers many times.