The light railways and subways make it ________ for people to travel around Chongqing. 

After practicing for several months，I can swim much__now.

Harry Potter is an____book for children, but my cousin doesn’t seem at all_____in it.

We talked            until Mr wu asked us              

——Is she a hard-working student?——Yes, she is. She studies ______. She is also good at PE. She runs very______.