【简答题】1. Most research and development projects some element of risk. 2. The government must take action to stop the fighting. 3. Time spent in education is a good of social and economic position. 4. Can ’...
【简答题】That family (is, are) a very happy one. 2.The audience (is, are) listening to a Beethoven symphony. 3.The government (is, are) doing its best to boost production. 4.The football team (is, are) being r...
【简答题】Most research and development projects some element of risk. 2. The government must take action to stop the fighting. 3. Time spent in education is a good of social and economic position. 4. Can ’ t w...