中国大学MOOC: His English is excellent because he has been speaking since he _____ a boy of twelve.
举一反三
- He has been speaking English since he _____(be) a boy of twelve.
- ______ he entered the university, his English has been much improved. A: Before B: After C: When D: Since
- He English since he seven years old. A: has learned, was B: is learning, is C: learned, has been D: learns, is
- 中国大学MOOC: He Jiang was selected as a student speaker because he has beautiful spoken English and charming delivery.
- _____ he entered the university, his English has been much improved.