Americans _________sent a message to the world________ we have never been a collection of Red States and Blue States: we are, and always will be, the United States of America.
| A．that, \ | B．who, that | C．who, when | D．that, what |
The politician has been warned that he would be getting into great trouble ____ stick to his standpoint.
| A．were he to | B．he will | C．he was to | D．would he |
The boy spent as much time playing video games as he ____ studying.
| A．does | B．had been | C．was | D．did |
Have you got any explanation to the question ___ he came here for last weekend?
| A．why | B．what | C．how | D．which |
I’ve spare ___ juice for you, and your half ____ in the refrigerator.
| A．half the, is | B．the half, are | C．my half, is | D．a half, are |
Of the three statements he has suggested __ the heating problem, I think the last one is the best.
| A．solving | B．to solve | C．to solving | D．solve |