课时作业21（必修4，module 3） ⅰ．完成句子 1．不要泄露我的秘密。 don't ______ ______ my secret. 2．他们都想用车，于是他们达成了一项协议。 they both wanted to use the car，so they ______ ______ ______. 3．我发现这块化石纯属偶然。 i discovered the fossil quite ______ ______. 4．他每次来看我们时，都会买一些精美的礼物。 ______ ______ he comes to see us，he will buy some wonderful gifts. 5．无论他回家多么晚，他的母亲都等着他。 ______ ______ he went back home，his mother was waiting for him. ⅱ．单项填空 1．（2012上海复兴中学月考，39）the reason why we set up “a green responsibility card” is to give people ______ a feeling of accomplishment.
