Were Tom and Jack at home– of them was at home. They were both in the park.

Various efforts over the centuries _________ to predict earthquakes to reduce the damage

Be sure to make the invitations sent to ____ has takenpart in the competition.

need time to _______ on what the teacher taught in class.

__________cleaning the yard and making up the beds for the old，we also read newspapers for them and had chats with them