1.We are recognizing and we are taking some kind of action.
2.American government tries to nab/apprehend/ arrest terrorists at the airport, so the customs procedure becomes more complicated.
3."How do you teach unprincipled /unscrupulous children?" Sandra wondered.
4.I know you are not evil-minded/malicious, but I did get hurt.
5.Certain influences come into play. Certain factors become significant. Certian considerations becomes important.
6. My head was incoherent when I was sick.
7. Don't listen to the MP3 on the MRT, the noise was drowned out.
8. When you experience jet lag, your biological clock has been thrown off.
9. I don't think we can accept that plausible excuse/explanation.