| 用所给词的适当形式填空。 |
| 1. A large amount of time ____( be) spent on the research work last year. 2. Huge amounts of farmland ____( be) destroyed in the past five years. |
| 用所给词的适当形式填空。 |
| 1. A large amount of time ____( be) spent on the research work last year. 2. Huge amounts of farmland ____( be) destroyed in the past five years. |