13In common ______ other boys of his age, my young son is looking forward to _______ the permission to date

Why do you like living here– Because it’s quite quiet. There are carson the street.

Tony tells me he is likely to win the match, and ______ he wins, he will treat us to a meal.

Such problems as high blood pressure and heart trouble are _________ features of old age.

know anything about China’s space program——Yes, ________ I know, China will send woman astronauts into space in the near future.