用can或could填空.1、--_________you swim last year?--No,I_________.But now I can.

题目

用can或could填空.1、--_________you swim last year?--No,I_________.But now I can.
2、I________play tennis now,but I_________play it last year.
3、My brother__________play volleyball two years ago.
4、She____________speak English very well.But she_______speak it when she was five.
5、We_______（not）dance in the past.

答案

1.couldn't could
2.can couldn't
3.could
4.can couldn't
5.couldn't