用括号内所给动词的适当形式填空，必要时可加助动词或情态动词.

    Mr. Green is an American doctor. He (be) a doctor since 1996. He is busy every day and (have) little time to rest, but he (love) his job.

    It was a cold winter evening. While he (read), his telephone call ringed. Mr. Green received a phone call from a woman. She said she needed the doctor's help. Mr. Green decided (drive) to the town she lived in right away. It was snowy and there was ice on the road. Suddenly, his car (hit) a big tree and turned over. Luckily, he wasn't hurt. He got out of the car and walked to the nearest house. He wanted some help. The door of the house (open) by a young woman. To his surprise, she was the patient who had just called him up.