Great changes have taken place in that school. It’s no longer ___ it was 20 years ago, ____ it was so poor.
People have the belief ______ factories should produce fewer things from raw materials, ______ the supply is growing smaller and smaller.
________ Yao Ming has retired from the NBA, the pleasure we have got by watching him play basketball at home and abroad will last long.
The ________ soldier said it was ________ to give up his rest time to save more people caught in the earthquake.
What shall we use for power when all the oil in the world has ________?
Don’t ________ more work than you can do, or you will ________.