They have________signs in some places to remind the visitors not to step on the grass.

But for the help of my English teacher, I ________ the first prize in the English Writing Competition.

In our school library there ____ a number of books onscience and the number of them ____ growing larger and larger.

What do you think of Spain—Well, considering its diverse cultures, itis an attractive country, ______ worthy of a visit.

Kathy has wasted so much time playing, ___failing in the exam