句型转换。 1. Is he your friend? (改为复数形式) ___________ ___________ your ___________? 2. Li Lei brings me a card. (改为一般过去时) Li Lei ___________ me a card. 3. Jenny does her homework at home. (改为一般疑问句) ___________ Jenny ___________ her homework at home? 4. There are three buses at the bus stop. (对画线部分提问) ___________ ___________ buses ___________ ___________ at the bus stop? 5. It is rainy today. (对画线部分提问) ___________ ___________ ___________ ___________ today?