同义句转换。 1. When he was still a boy of ten, he started working to support himself. _______ _______ _______ _______ _______ _______, he started working to support himself. 2. He practises very hard so as to pass the driving test pass the driving test, _______ _______ _______ he practises very hard. He practises very hard _______ _______ _______ he can pass the driving test. 3. I happened to be bathing when the telephone rang. _______ _______ _______ _______ _______ _______ when the telephone rang. 4. I didn't happen to have any money with me. I _______ _______ _______ have any money with me. 5. I visited the Great Wall for the first time. _______ _______ the first time that I _______ _______ the Great Wall. 6. She thinks it is no use arguing with him. She thinks _______ _______ _______ arguing with him.