It wasn’t until he was diagnosed with cancer ______ he realized the significance of health.
| A．when | B．that | C．which | D．what |
I am a determined person. ____ I have made up my mind, nothing can change my mind.
| A．Once | B．Though | C．Unless | D．Until |
How often do you go swimming with your brother?
| A．I have no idea | B．It depends | C．As usual | D．Of course |
I was about to get on the bus _________someone called.
| A．as | B．when | C．before | D．while |
It was Mr Green _______ looked after my grandmother when I was on business.
| A．whom | B．which | C．whose | D．who |
Don’t ________when you are in trouble, you should be brave.
| A．give off | B．give out | C．give away | D．give up |