1.  " I didn't know if my expression looked weird but she didn't show any awkwardness.

2.  What's more, they don't know how to be romantic so they probably fail when paying court to girls.

3.  People live on campus always enjoy "inferring" anything about other people when knowing which college they belong to merely.

4.  I do not know how the campus keeps away from the noisy city but it really does it well.

5.  They have known what they want and what they have to do.

6.  She must know how beautiful she was, since she kept looking into the mirror, appreciating herself from different angles.

7.  At a sudden, I even became speechless, not knowing how to comment on her opinion.

8.  She said she eventually knew why scientists were crazy about their majors.

9.  However, only when we get familiar with someone can we know exactly how he or she is like.

10.  We will know how to get along with people who we are not familiar with.