The star has been playing basketball（）he was a boy.
A: during
B: when
C: since
D: as
A: during
B: when
C: since
D: as
举一反三
- The star has been playing basketball ______ he was a boy. A: A) during B: B) when C: C) since D: D) as
- He has been speaking English since he _____(be) a boy of twelve.
- He is the boy ______ likes playing basketball very much.
- 6. He has been living here _____2007. A: in B: for C: since D: during
- 中国大学MOOC: His English is excellent because he has been speaking since he _____ a boy of twelve.