单选题：I ____ for two hours but nobody has arrived yet.

题目内容：

I ____ for two hours but nobody has arrived yet. A．am waiting
B．waited
C．had waited
D．have been waiting

参考答案：

答案解析：

This book is so long that I ____.

This book is so long that I ____.A．haven't finished it yet B．haven't finished i

分类：成人英语三级题型：单选题

—How do you deal with the disagreement between the company and the customers—T

分类：成人英语三级题型：单选题

The students are looking forward to _____ their parents in winter vacation.A．see

分类：成人英语三级题型：单选题

计算现浇混凝土楼梯工程量时，正确的做法是（　　）。A．以斜面积计算 B．扣除宽度小于500mm的楼梯井 C．伸入墙内部分不另增加 D．整体楼梯不包括连接梁

分类：成人英语三级题型：单选题

设备基础挖土方，设备混凝土垫层为5m×5m的正方形建筑面积，每边需工作面0．3m，挖土深度1m，其挖方量是（　　）m3。A．18．63 B．25 C．20．28

分类：成人英语三级题型：单选题