My friend, Jack, will have a holiday as soon as he ________ his work next week.

s economic development has made ______ rapid progressin the past 10 years, and young people have made ______ great contribution tothis progress

We will always have great memories of our time together _____ we do in the future.

Science and technology is changing fast nowadays. I bought this MP3 player at the beginning of this year but now it’s out of ________.

下列名句中，没有语病的一句是（ ）