--What time shall we meet, Betty? ---____.
___________ I toured Zhang Jiajie, I was deeply impressed with its beautiful scenery.
Although she is only 17 years old, she _________ drugs for two years.
He risked __________ his job to see me off.
I was ashamed _________ lied to my mother.
Doctors are doing research to find out what happens physically when people _________ smoking.