-Do fish sleep? I think they’re swimming around . -Of course they sleep. But they sleep with their eyes open.
【原创】There’s________ “m” and _______ “u” in the word “music”.
【原创】—My father have a bad cold. — !
Paul told us he wasn’t mad ______ Marcia anymore.
We’ll stay at home if it _______ tomorrow.
He goes to school early on workdays ____ Saturday and Sunday.