Mary said that she __________ to Guangzhou.

Do you know if they ______ to play football with us tomorrow—I think they will come if they ______ free.

It’s seven o’clock. My family _______ a walk in the park..

He always appears to _________.—That’s because he’s really knowledgeable and experienced.

Which do you prefer to use to communicate with your friends，QQ ________ MSN