All the students were sleeping _______they heard a man _______“help”.
–How can I improve my study in the last thirty days? --________ listening to the teacher carefully in class. This is the most efficient way!
To do some voluntary work for the 2nd Youth Olympic Games is ______ excellent chance for us to serve our hometown—Nanjing.
–-Do you know about Han Han? --Yes, he ______ a playful student when he was in secondary school, but now he is one of the most popular writers in China.
There’s too much noise outside. _________ of us two can fall asleep.
Our teacher asked us to write a _________ letter in English this morning.