—I’m sorry, but I didn’t mean ____ out your secret.—But you know, letting out secret means ____ one’s feelings.

Earth is believed ______ by an object the size of Mars at some point in the distant past  before its surface cooled．

 Though _____ money, Tom managed to send Lucy a gift.

Because of the heavy snow, we had to delay the visit until this weekend to the artgallery ____ in the center of our city these days.

When I opened the door, I found my father ______ in his chair, completely ______ in a magazine.