【題目】While e-book sales this year have declined, it is still important for us to remember that the figures are still higher than ______ five years ago.

【題目】School must meet the c（挑戰(zhàn)）of the new technology.

【題目】In order to protect the environment，people are greatly encouraged to travel by public________.

【題目】She was c（謹(jǐn)慎）to avoid making her father angry.

【題目】Most of the students in the Occupy Central movement in Hong Kong ______ have participated for more rights, but what they did caused serious effects on people’s living.

【題目】After they had studied for years, they a （宣布）with certainty that they found out the reason.

【題目】Cholera was such a d（致命的）disease that many people died of it.

【題目】— What do you think of the present economic situation?

【題目】— Why are you so angry with her?

【題目】I noticed his eyes （尤其、特別）, because they were very small.