Judging from her _______ look, I know it is a very _____ situation to her.

—What did you do when you saw the girl     in the flood? —I did what I could     .

When he came back three hours later, they were still ____on the sofa, _____ in conversation.

Many a student ____ going to have themselves ____ in the hospital.

There are some students ______ to have known what they don’t really know, which is really harmful to them.