I can’t remember the name of the park _______ we had a picnic then.

She didn’t mention her troubles to Mr Li，who might have helped her ______

Were you at home at 7:00 yesterday evening I called you but no one was there. —Sorry, we ___________ a movie at the theatre at that time.

and I are in the same historyclass, but her assignment differs _____________ mine.

It was never clear ________ the man hadn’t reported the accident sooner.[ ]