题目内容
根据句意和本单元学过的内容，填入适当的介词或副词
While ________ a hiking trip, our cooks prepare delicious meals．
The museum was built ________ the memory of the famous artist．
Before the children appear on the stage, they love to dress ________．
Don’t play trick ________ me, after all, I am your teacher．
I am looking forward ________ coming here, yet you don’t turn．
_________ this way they cut _________ the fat and increased the fiber in the meal．
