—____ I swim here?—I’m sorry. Children ____ swim alone here..
How long does it take you __________ your homework in the evening?
Our Chinese teacher tells us ______interesting story and _______story is about Thomas Edison.
单词辨音(共10小题;每小题0.5分,满分5分)
I ________ walk ________ after school. I ride a bike every day.
He, ______ his father, ___________ ball games.