I could ride a bicycle when I was young.(改为一般疑问句,并作肯定回答）

I could ride a bicycle when I was young.(改为一般疑问句,并作肯定回答） I was in the park a moment ago.（改为一般疑问句,并作肯定回答.） I have a computer.(改为一般疑问句,并作肯定回答） 1. I have a computer. (改为一般疑问句,并作肯定回答） 2. Jiang F I have a blue bike.(改为一般疑问句,并作肯定回答） I'mbusy(改为一般疑问句,并作肯定回答 I can swim(改为一般疑问句,并作肯定回答) I can ride a bike.(改为一般疑问句,并作肯、否定回答) I was at home yesterday怎么改为一般疑问句,并作肯定回答 I was happy.改为否定句、一般疑问句并作肯定否定回答! I was in the zoo last Sunday（改为一般疑问句,并作肯定回答） （）you in the zo My sister could ride a bike when she was 6.变一般疑问句作否定回答