Exploring ________ space is exciting, yet dangerous. There is _______need for both robots and humans for space exploration.
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.