用方框内所给词的适当形式填空。 |
1. I ________ to ride a bike when I was four years old. 2. Students usually ________ learning English in primary schools. 3. They ________ a big party to celebrate (庆祝) the harvest last October. 4. Professor Li stopped ______ after he had a heart disease. 5. I ________ Lucy last night, but she was not at home. |