I am going to the post office. Do you have any letter _________?

---Ring me at 7 a.m.?         
---No, not that early! I _________.

The International Day against Drugs,aimed at warning people to keep away from drugs， _________ on June 26th every year．

Edward, you play so well. But I_____________you played the piano.

At present H1N1 is spreading so widely throughout the world; otherwise, people ______ a more peaceful and safer life.

Most of my friends will go hiking next Sunday. The rest ______ to see a new film.

—Hi, Li Xiaoxia. What a surprise! Dad _____ you _______ so early. He’s upstairs reading. I’ll just call him.

A．didn’t know; would come	B．doesn’t know; are coming
C．hadn’t known; were coming	D．hasn’t known; will come

.---You may find the key to the maths problem on page 107 .
---Ah, it’s so simple . I wonder why I         of that .

—Li Ping, your cousin speaks fluent English, like a native speaker.
—No wonder. He once _____ in New York for two years as a visiting professor.

---I can’t manage this Sunday. Another time, but not Sunday.
---Why _____ me earlier? I’ve been looking forward to it.