1.  Come on.

2.  In a word, though there is a biggest pain, the happiness come out of it.

3.  Now come to us poor students learning English.

4.  Come up with the important things first, since people are usually most impressed by the first thing you talk about.

5.  While what is much more terrible is that he can never come up with the right answer.

6.  Come on!

7.  Now come back to the reality.

8.  Unluckily, a piece of frightening news come out a week ago, awesome man Steve died in fifth october this year.

9.  While more and more mothers come to weigh the cost of whether to continue their employment or to stay home with the kids.

10.  Come on !