简答题 A lot of natural resources in the mountain area will be exploited and used.

简答题 Ted and William have lived under the same roof for five years.

简答题 The more passions we have, the more happiness we are likely to experience.

简答题 Various substances differ widely in their magnetic （磁性的） characteristics.

简答题 In an age of plenty, we feel spiritually hungry.

简答题 There is a large amount of energy wasted due to friction

简答题 Fred was such a hardworking student that he soon came out first in the class.

简答题  The students are encouraged to do more listening, reading and writing by their teacher.