8. Whenever        (回憶) the happy times in their early lives,the retired couple often tend to sing their favourite songs.

7. The serious pollution is leading to many plants and animals        (滅絕) very quickly.

6. Though having been a successful and very rich family,they are       (過著簡樸的生活) .

5. By showing your fault over and over again,he is trying to        it              (使你刻骨銘心) .

4. The keepers in Taiwan said the pandas from the mainland were       (狀況良好) .

3. In spite of many experiments,they        (結(jié)果白費(fèi)力氣) .

2. The doctors succeeded in        the drowning boy         

(使復(fù)活) .

根據(jù)中文提示用短語的適當(dāng)形式填空

1. Young couples are advised to visit their parents        (時不時地) .

10. Your argument is based on a completely false        (假設(shè)) .

9. Now it is a        (強(qiáng)制的) rule not to smoke in public places.