用所给动词的适当形式填空。 1. When I returned home, he _____ (leave). 2. By ten yesterday evening, she __ (finish) writing. 3. He _ (study) English for five years before he came here. 4. It __ (stop) raining when l woke up this morning. 5. I __ (not read) the book because I had read it before. |