Little Anna's parents walked slowly, one after(), through the shallow water of a stream to search for her lost bag.

--Tom, it is your turn to give us an English lecture. ...

单项选择题--Tom, it is your turn to give us an English lecture.
--I told one yesterday.()

All his attention () on the computer game, so he even d...

单项选择题All his attention () on the computer game, so he even didn't notice his mother enter the room.

The firm invested approximately 60 million dollars in (...

单项选择题The firm invested approximately 60 million dollars in ()it says is the world's largest bot tle recycling plant.