------Where did you first meet your boyfriend?------It was in the department store ______ he worked.
It took building supplies to construct these energy-saving houses. It took brains, too.
The incomes of skilled workers went up. , unskilled workers saw their earnings fall.
______ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.
My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive .
The questionnaire takes ______ ten to fifteen minutes to complete and can be used along with the assessment interview.