青书学堂: ( )Although he's only 16 years old,______ he has been a college student for two years.
举一反三
- Although Bill is only three years old, he can ____ a little Chinese._
- Tony is only fifteen years old, but he has much __________ (知识) of American history.
- He in the company since he graduated from Lanzhou Vocational College two years ago. A: worked B: has been working C: had worked D: was working
- David ________ school two years ago and he _________ for two years.
- _______he was only 6 years old, he can speak English fluently.