---What was your sister doing at this time yesterday?
---She was reading a magazine _______I was writing an e-mail at home.
A.as soon as | B.after | C.until | D.while |
---What was your sister doing at this time yesterday?
---She was reading a magazine _______I was writing an e-mail at home.
A.as soon as | B.after | C.until | D.while |