In class, fewer of the students who are not ___ their studies sometimes ____the dying robots, not listening attentively.
“Do you regret paying five hundred dollars for the painting?”“No, I would gladly have paid______for it.”
Smoking is so harmful to personal health that it kills_____people each year than automobile accidents.
After the new technique was introduced,the factory produced ___ tractors in 1988 as the year before.
The weather in China is different from____.
Ten years ago the population of our village was ______ that of theirs.