Why are you so angry? They ............................................................................. the road by the end of this year. (repair)
Why are you so angry? They will have been repairing the road by the end of this year.
Your French is not perfect. Don't worry. I ....................................................................... it for a year by the time I leave for France. (learn)
Your French is not perfect. Don't worry. I will have been learning it for a year by the time I leave for France.
Look at Jane. She's so nervous. No wonder. She ............................................................... for Tim for five hours when his plane finally arrives. (wait)
Look at Jane. She's so nervous. No wonder. She will have been waiting for Tim for five hours when his plane finally arrives.