It’s polite to__________ the door first before you go into someone else’s room.

Do fish sleep I think they’re swimming around .-Of course they sleep. But they sleep with their eyes open.

Would you like ______for a walk with me —-I’d love to ,but I’m considering ______to the cinema .

下列各句中，没有语病的一句是 （ ）

— Would you care for a cup of coffee?— I ________ one. Thank you just the same.[ ]