It’s their duty for the soldiers our country our enemies.
| A．to prevent; from | B．to keep; from |
| C．to protect; from | D．to defend; with |
Only when the war was over in 1945 ______ able to get back to work.
| A．was he | B．did he | C．could he | D．could he be |
To make your argument more ________, you should put forward more supporting information.
| A．convinced | B．convincing |
| C．to be convinced | D．to be convincing |
There is something wrong with his throat; ______, Michael has to give up the singing competition.
| A．as a matter of fact | B．on the whole |
| C．as a result | D．in particular |
The impatient driver received a ticket for speeding. He _______ so fast.
| A．mustn’t have driven | B．wouldn’t have driven |
| C．couldn’t have drive | D．shouldn’t have driven |
Lin Tao, who is said to have settled in the UAS recently, ______ in my neighborhood for four years.
| A．lived | B．has lived | C．had lived | D．was living |