Ann always stands at the window and waves to_____.
---Have all the mysteries been cleared up? --- Almost. But ______ only one question ______.
I will never forget my stay there I found my lost wallet.
Please tell me the after service of the computer; I’m worried about a breakdown sometime.
—Jack can't concentrate on his lessons recently. —Yes, that might ____ why he did so badly in the last test.
Theytwo free tickets to Australia, otherwise they’d never have been able to afford to go.