—Daddy, can you buy me a new MP3 when you go to Beijing? —You ______ get one if you are admitted to a key middle school.
The weather turned out to be fine yesterday. I_____ the trouble to carry my umbrella with me.
I was about to leave the office ______ an unexpected visitor came. A. while B. as C when D. before
It was a matter of ________ would take the position.
People try to avoid public transportation delays by using their own cars, and this ____ creates further problems.
After the new technique was introduced, the factory produced_____ cars in 2008 as the year before.