Điền từ thích hợp để hoàn thành câu

1. Is she still in the UK? How long did you say she ________ medicine there?

2. How many courses ________ you ________ so far in your graduate programme?

3. Like many of my classmates, I ________ English since primary school.

4. He ________ with his cousin for two months, but he's looking for a place close to his university.

5. My brother ________ his postgraduate studies and got a Ph.D. degree. He's now teaching at a university.