完成句子（每题 2 分，每空一词，共计10 分）
1. Afterwards, I ________ _________ _________ cheerful, but Hanna sensed something was wrong.
后来，我假装很开心，但汉娜还是觉察到哪儿有点不对劲。
2. He could not _______ _______ _______ the game, and as a result of his careless playing we lost.
他跟不上比赛的节奏。由于他的漫不经心，我们输了球赛。
3. A girl’s closest friend, however, might be ________ ________ tell her about something that has happened in life.
一个女孩的密友则可能迫不及待地向她吐露自己生活中发生过的一些事情。
4. It is our duty to try to ________ _________ _________production and reduce the amount of things we make and buy.
我们有责任努力削减生产，减少制造和购买的东西的数量。
5. ________ _________, I find many people willing to pay a little higher price for things that are friendly to the environment.
我问过周围的人，发现许多人都愿意支付稍高一些的价钱来购买环保产品。