The student’s mind is always _____ when he listens to his teacher. [ ]

____________the trousers They’re very nice. They feel soft and smooth.

While the alien ________ the museum, the boy called the TV station.

Five people won the“China’s Creen Figure”award,a title to ordinary people for their contributions to environmental protection[ ]

I left my handbag on the train, but luckily someone gave it to a railway official.—How unbelievable to get it back! I mean, someone ______ it.