．piano is her main focus，she's also great at guitar．
| A．Since | B．Once | C．Unless | D．While |
While many believe Benjamin Franklin to have discovered electricity, recent findings seem to show _____.
| A．anyway | B．otherwise | C．somehow | D．so |
— Can I smoke in this hall?
— No, you can’t. If you _____, please go to the smoking room.
| A．should | B．might | C．can | D．must |
— I’m terribly sorry to have put you through so much trouble.
— _____. I know you didn’t mean to.
| A．Forget about it | B．No trouble | C．All right | D．You’re welcome |
— He seems to be lost in thought. Why?
— Because the film _____his memories of his childhood.
| A．calls up | B．picks up | C．brings up | D．takes up |
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 |