题目

阅读下面短文，掌握其大意，然后从16~35各题所给的四个选项（A、B、C和D）中，选出最佳选项。        My friends and I had just finished lunch at a hotel when it started to pour heavily．When it became lighter．I decided to  16  the rain to get my car．which was parked at my office three streets away．        My friends  17  that I shouldn't go,  18  I was seven months pregnant (怀孕的) then．I told them that I'd be very  19 ．One of them wanted to come with me but I  20  that she should stay with another friend who needed  21  wi4、下列图形中，有无数条对称轴的是（　　）A、等边三角形B、平行四边形C、等腰梯形D、圆