用括号内所给单词的适当形式填空。 1. Feng Xiaogang is one of the best ________(direct) in China. 2. Jack is an ________(Australia) boy and he comes from Sydney. 3. Michael became an __
--- Look! The telephone is broken. Someone damaged it ________ purpose. ---That may be right. But perhaps it was broken _________ accident. A. on; by B. by; by C. on; on