1 . They declared that clothes made of it can be used to transform the temperature of the human body ________electrical energy, which can drive electronic devices. (用适当的词填空)

2 . All systems are ________good condition, and the launch site is preparing to fuel up the rocket as scheduled. (用适当的词填空)

3 . Earthen houses are made ________ earth, stone, bamboo and wood, all readily available materials which are used to form walls up to 6 feet thick. (用适当的词填空)

4 . It is popular________women and men. (用适当的词填空)

5 . The society was set up to preserve endangered species___________ extinction. (用适当的词填空)

6 . 你放心好了，他会准时来的。
You may ____________he will come on time.

7 . If a person places money prior ______anything else, it’s very likely that he could not enjoy the happiness in life. (用适当的词填空)

8 . The economic problems of one country often have a great effect ______ the whole world. (用适当的词填空)

9 . I had an alarming encounter ______ a wild pig. (用适当的词填空)

10 . The young man’s voice was just an ordinary voice,but he sang ______tune. (用适当的词填空)