There was a __________look on her face because a________ problem _________the little girl.
I suggested not only _____ go to the meeting but also give a speech there.
Information obtained from libraries is sooner forgotten than ____.
My parents tried their best to laugh _______ my fears for the coming examination.
After ______ seemed hours of waiting in line, finally it was our turn to pass the gateway.
________ treating the homeless man as a shame to society, Mrs. Wang provided him with food and water.