单项选择题
A. 整个北美的施工人员开始用铁梁和木材来为欧洲建造房子。 B. 整个欧洲和北美的施工人员开始用铁梁和木材来建造房子。 C. 整个欧洲和北美的施工人员开始了用铁梁而不是木材来建造房子。 D. 整个欧洲和北美的施工人员开始了用木材而不是铁梁来建造房子。
A. about 50 million working days B. more than 200 million working days C. almost 20 million working days D. at least 12.5 million working days
A. Form the bank he is working for. B. Form his friends. C. Form another bank. D. From his office.