Check carrots, potatoes, onions and any other vegetables ______ and immediately use or throw away any which show signs of rotting.
Linda gave us a vivid _____ of her trip to Mount Lu after her return.
On April 1, Jim tried to play a trick ______ his teacher but the teacher wasn’t taken _____.
Many children seldom communicate with adults, ________ it difficult for their parents to know what they are thinking about.
The headmaster demanded all the teachers ______ in the office.
—How was that? —I was chatting on line ______ the power went out.