Tom read this poem; his voice was quiet but every word was ______.[ ]

We should make the world be aware of the fact that the land hunger ____ population growth before we carry out our population policy.

John has two brothers， but either ____out of worknow

People are puzzled _____ they read the book.

(2014·石家庄高中复习教学质检)I always try to be________to others when walking my pet dog along a pavement and step to the side with my dog to let them pass by.