1． We have to visitour grandparents this winter vacation because we miss each other very much.

Hi,Tom.Did you go to the party?— Yes,but I really________have,because I had lots of work to do.I had to work far into the night to finish it.[ ]

The teacher spoke so fast that it was hardfor the students to ______ what he was saying.

Our neighbor offered to look after our baby while we were away, ____ was very kind of her.

_____ football on tin playground, Ifound ‘my keys ______.