动词适当形式填空
count   be  come   die  arrive  clean
Many of the birds___________because they don’t have enough to eat.
My grandfather _______________ 60 years old in two years.
Look ! Someone ______________ the birds in the forest.
He is always the first _____________.
The heavy rain prevented us from __________ at school on time yesterday.
The teacher made me _______ the classroom after school.