As to the question of whether we will sell our house or who we shall sell the house to, you ____ have answer by tomorrow.

ook tells the life story of John Smith, who left____ school and worked for a newspaper at the age of 16

The airline has a booklet _____ will tellyou most of the important information to Europe

______your parents ________ Beijing

I would have come earlier,but I________that you were waiting for me.[ ]