I ________ on a sofa because my grandparents have been here to spend the weekend.
A. slept B. was sleeping C. have slept D. am sleeping
The Voice of China has set up a stage some people can achieve their dreams．
A．which B．where C．that D．when
---I will have to think about it again．
--- If you _ , you may lose the opportunity to compete altogether．
A．hesitate B．wonder C．continue D．fail
Exploring ________space is exciting, yet dangerous. There is ________need for both robots and humans for space exploration.
A. the; a B. a; a C. /; a D. /; the
Peter has gone to Beijing, but I’m wondering why he ________ in such a hurry.
A. left B. has left C. leaves D. was leaving
假设你是李华，你和父母将在下周前往美国纽约度假，想请你的美国朋友Mark 帮你预定一家旅馆。请根据以下要点提示给他写一封邮件。
入住时间：2014年春节;
地点：位于市中心;
房间类型：一间单人房和一间双人房;
其他要求：提供早,中,晚餐及上网服务。
注意：1. 100词左右；2. 可适当增加细节，以使行文连贯。
