中国改革开放30年以来取得了举世瞩目的发展成就,从生产力到生产关系、从经济基础到上层建筑都发生了意义深远的重大变化,但我国仍处于并将长期处于社会主义初级阶段的基本国情没有变,社会主要矛盾没有变。这表明( )
—Can you tell me if Tom has finished his homework? —I've no idea. He ________ it this morning.
—Have they got their new house painted yet? —I don't know. But I was told it ________ when I met them last week.
—Got your driving license? —No. I ________ too busy to have enough practice, so I didn't take the driving test last week.
Sun Yang, a young Chinese swimming talent, ________ several gold medals before the 2012 London Olympics.
—Hi, Mr. Smith. Which department do you work in? —I am in the Marketing Department now, but I ________ in the Sales Department before long.