【单选题】—Who is the young man in the air force uniform in the picture? — My brother. He has _____ the army for two years. [ ]
【单选题】一杯制作失败的Espresso,其克立码(Crema)会()
【单选题】A Frenchman who lost his arms and legs successfully swam across the Channel, a challenge he _____ for two years. [ ]
【单选题】Do you know ______? [ ]
【单选题】— “Who is he?” — “I don’t know. You may ask Mary ___________ (who he is, who is he).”
【单选题】— “Who is he?” — “I don’t know. You may ask Mary ___________ (who he is, who is he).”