【简答题】1) To protect our environment, we should use _________ fuels. 2) It is essential to rebuild the __________ of a modern market economy. 3) Developing a(n) _________ aircraft is quite an accomplis...
【简答题】She filled out a(n) _____ for the post.2. Good speakers can be very _____.3. The robber tried to _____ her with a knife.4. There is a(n)_____ shortage of food in this country.5. I am quite safe. T...