Is he your brother-No, _________.

Children should be instructed to put things ________ they belong in their early childhood.[ ]

I think _____ of the materials I listen toat the beginning of the exam _____easy.

Look！ There a number of apples on those trees.—Wow！ I think the number of the apples over 100.

It’s so nice to hear from her again. ______, we last met more than thirty years ago.