Have you ever had a case _____someone accused you ofdoing something you hadn’t done

The whole hall _____ towait for the announcement of the winner of the first prize

did you pick upnewsthat the pop star, whose new song was quite a hit last year, would giveconcert

The river smells so terrible! How did it come about—People used to pour dirty water into it.

Don’t you think the new job is a real challenge for Jack—Well, ______ difficulties he meets, I believe he will never lose heart.