I stayed in Japan only a few matches, , I went through a series of hardship.
| A．during when | B．at that time |
| C．during which time | D．of which time |
He risked __________ his job to see me off.
| A．Losing | B．to risk | C．being lost | D．Lost |
I was ashamed _________ lied to my mother.
| A．to be | B．of having | C．that | D．of being |
Doctors are doing research to find out what happens physically when people _________ smoking.
| A．quit | B．decline | C．depart | D．reserve |
It was April 29, 2011 _____ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
| A．that | B．when | C．since | D．before |
Find ways to praise your children often , _____ you’ll find they will open their hearts to you.
| A．till | B．or | C．and | D．but |