It was only after he had read the papers ________ Mr. Gross realized the task before him was extremely difficult to complete.
___ the room, the nurse found the tape-recorder ___.
As we joined the big crowd I got _____ from my friends.
Scientists have many theories about how the universeinto being.
Mr. Leea plan to reduce water pollution, which all the people present at the meeting thought highly of.
—I think he is taking an active part in social work. —I agree with you .