Let’s try our best to ____ paper to savethe trees.

There is ____ “u” and _____ “r” in the word “number”.

There are _______people in our school.

_______ the little girl was hit by a truck, nobody gave a hand to the girl ______ an old lady appeared. Why were they so cold-hearted

She knows nothing about her newneighbor________he moved into the building last Sunday