She looks sad. Could you please tell me ____ that prevents her from being as happy as before?

the end of the war, many of the pricelessantiques ______ to their rightful owners

you can’t find a better job, why don’tyou stick to the present one —Well,_____

Bob has been working hard in an attempt to have his pay________ as soon as possible. [ ]

Your spoken English is so good．Have you been abroad-Yes．I in America for three years．