Mr. Yuan is______ about making predictions about the success of the farming program because it is so important.
After staying in hospital for long, the patient was advised to go to the seaside to____ his health.
______, I think, the problems can be settled in no time.
Play, often seen as____activity for kids, is still important in_________development of teenagers.
Low-carbon lifestyle is of great benefit to improve the world environment. can be enjoyed from it until you have a deep understanding of it,however.
The scientist was rewarded by the government for such a great,contribution to the country.