Your are ______ to suffer from bad health if you keep smoking.
| A．likely | B．possible | C．probable | D．perhaps |
_____ is no doubt _____ he will be successful someday. 
| A．There; whether | B．There; that | C．It; whether | D．It; that |
Only when I left my parents for Italy ________ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
—I’m sorry. I ___________ at you yesterday.
— Forget it. I was also a bit out of control myself then.
| A．shouldn’t shout | B．mustn’t shout |
| C．shouldn’t have shouted | D．mustn’t have shouted |
The medicine will make you sleepy. You _______until this afternoon. 
| A．would better not drive | B．would better not to drive |
| C．had better not drive | D．had better not to drive |
A great number of people were killed in the big fire, and the number of the people who _____ missing _______still increasing.
| A．were; was | B．are; is | C．were; is | D．are; was |