More patients ___________ in hospital this year than last year.
| A．treated | B．have treated | C．had been treated | D．have been treated |
The report aims to explain how these conclusions ______.
| A．were reached |
| B．had been reached |
| C．have reached |
| D．had reached |
Grandpa was shocked by the news. Rarely ______ him so quiet.
| A．do I see |
| B．had I seen |
| C．I had seen |
| D．I saw |
It’s been discovered in the study ______ people are more relieved after forgiving others.
| A．that |
| B．what |
| C．which |
| D．whose |
______ Stephon Marbury is an American, he has become a role model among Beijing basketball fans.
| A．As |
| B．Although |
| C．When |
| D．Since |
--- You look great!
--- I ______ out. Check out my muscles!
| A．will work |
| B．was working |
| C．have been working |
| D．had been working |