破伤风最早出现并有诊断意义的症状是（）
A.苦笑面容
B.张口困难
C.角弓反张
D.胸腹肌紧张强直
E.颈项强直
参考答案：B
There ________ a small park near my home and I often go there .
A．was
B．were
C．is
D．are
