严禁使用加油枪直接给（）加注汽油。
A、铁桶
B、铝桶
C、塑料桶
D、摩托车
参考答案：C
He hurt his leg climbing the mountain; otherwise, he _____ the meeting.
A．will attend
B．had attended
C．would have attended
D．would attend
正常排卵周期黄体功能限于4周。
He hurt his leg climbing the mountain; otherwise, he _____ the meeting.