87. It was essential that _______________(我們?cè)谠碌浊昂炗喓贤?.
88. _______________(家庭人口多好還是人口少好)is a very popular topic,which is often talked about not only by city residents but by farmers as well.
89. We must _____________(用一切可能的辦法來幫助他們).
90. We ________________(盡情地吃了一頓)at the new restaurant last Friday.
91. To most of the travelers,________________(衣、食、住、行)are all important elements.