The teacher wants his students to know more about modern science and tries hard to develop a(n) ___ about nature among his students.
The soldiers have to stand for hours without changing ________.
There are many islands ________ the southeast coast of China.
Jumping out of ________ airplane at ten thousand feet is quite ________ exciting experience.
—Why didn’t you answer my phone at 10 am? —I for my decayed tooth in the clinic.
—Which of those electronic dictionaries do you like most? — . They are both expensive and of little use.