With Chang'e-3 successfully landing, China becomes the third country in the world that _______ on the moon.
The winter of 2008 was extremely bad.most of people say it was the worst winter of their lives.
No one helped me . I did it all myself .
To understand the grammar of the sentence,you must break it______ into parts.
The classroom is big enough, but we’ll have to move if we have more students.
—You know. Bob is a little slow ____ understanding, so… — So I have to be patient ______ him.