Sitting at the corner of the meeting room, he looked sad because there were so many problems ________.
At the class meeting, he made two suggestions, ______ were of great value.
His parents died when he was very young, so he was by his grandmother.
He wrote a________ report last night.
I can't make a decision right now. I need________ more time to think it over.
I just can’t________ them waiting for such a long time.