Only when he read the newspaper _____ the US President Obama would deliver a speech in Fudan University.
He, along with his sister, ______ how serious the situation is.
—These things are not useful to anyone, are they? —______. We can throw them away.
—My sister took a photo with Jay Chou last year. —______.
Our English teacher suggested we ________ English as much as possible in class.
Remember to introduce your friend Stone to me when he arrives, ______?