Choose the future perfect or the future perfect continuous.
1. At the end of June, Jane ______ enough credits to earn her Doctor's degree.
2. By the time she takes her medical board exams in July, Angela _____ a total of 25 practice exams.
3. By the end of next week, Andrew ____ enough money to afford a new PC.
4. By the time our visitors from England come next week, we _____ construction on our new house.