When I arrived at home, my little son was sitting in the corner of the bedroom, _______ with many dolls.
I am________your suggestion that we should spend more time on this project.
The traveler didn’t know________which direction to go.
He was a good student and scored ________ average in most subjects.
—Do you often go fishing at weekends?—Not often,I only go fishing________.
Do you think this shirt is too tight ________ the shoulders? (2012·北京,34)