How long had Grandpa's son been in the war?
举一反三
- How long had Myanmar been closed to the outside world?
- How long ____you____TV? A: Had, been watching B: watching C: have--been watching D: been watching
- It’s been a long time since I ________. How are you?
- She had been unable to sleep for three days because of her 13-week-old son's .
- How long has he been an auctioneer? A: He’s been an auctioneer for 33 years. B: He’s been an auctioneer for 13 years.