V. 完成句子  根据中文意思补全句子（每空一词，每词1分，满分15分）

66.光污染对人类健康有害。

Light pollution                                  human’s  health.

67.莉莉每天不得不早起赶头班车。

Lily                    get up early every day to            the first bus

68.只要我们共同努力，和谐社会就一定会实现。

                              _we work hard together, our harmonious society is sure to come true.

69.听到这个好消息，他高兴得说不出话来。

He was          glad         say a word when he        the good news

70. 在地震中保持冷静是非常必要的。

It’s very                               calm in the earthquake.