Not only his parents but also his brother           to the Summer Palace. They will be back next week.

6. So far, most of the work              by others, it’s your turn to do the rest of it.

While she_____ on the phone, a man walked into her room.

Yesterday I met Sandy. We ________ since ______ middle school.

I saw him in the library yesterday.  He ________ a book at that moment.