原始社会人们有时用2只羊换一把斧子,这种交换表示的是( )
—Would you mind me opening the window,sir? —________.I am feeling a bit chilly.
It was half a year________my good friend returned to his hometown.
—When did you get home last night? —It was almost midnight________we arrived home.
It saves time in the kitchen to have things you use a lot________easy reach.
The questionnaire takes________ten to fifteen minutes to complete and can be used along with the assessment interview.