Задание по англиском, помогите!!!

Question

Розкрийте дужки, вставляючи дієслово у потрібній часовій формі груп Perfect або Perfect Continuous. Речення перекладіть. 
4.3.1. Mom … (have) a headache since she came from the theatre. 
4.3.2. Who's that man standing on the corner? He … (stand) there for the last half an hour. 
4.3.3. Bob tried to find a job after he … (serve) a five-year sentence. 
4.3.4. I … (stay) at the hotel for a fortnight when I received your letter. 
4.3.5. My sister … (learn) the results of her exam even before you get to university.

Татьяна Никольская · Accepted Answer

4.3.1. Mom has/had been having a headache since she came from the theatre. 
4.3.2. Who's that man standing on the corner? He has been standing there for the last half an hour. 
4.3.3. Bob tried to find a job after he had served a five-year sentence. 
4.3.4. I had been staying at the hotel for a fortnight when I received your letter. 
4.3.5. My sister had learnt the results of her exam even before you got to university.