完成句子(共5小题10空;每空1分,满分10分) 1. 经济发展也带来了环境问题。 Economic development has also _________ ___________ to environmental problems. 2. 我们应该采取措施来防止地球受污染. We should __________ _____________ to prevent the earth from being polluted. 3.我们要尽一切办法使他振作起来。 We tried every means to get him to ___________ _____________. 4.他们很穷,但还是设法把儿子送去大学读书。 They were poor, but they__________ ___________ send their son to college. 5. 我为昨天所做的事向你道歉。 I ______________ ____________ you for what I did yesterday.