根据汉语意思，完成下列句子,每空填一词。（10分）
小题1:If you are tired, you’d better________ ________ (躺下) and take a rest.
小题2:What are you going to be when you________ ________ (长大)？
小题3:Don’t spit________ ________ (当众).
小题4:We will play basketball________ ________ (代替) playing soccer.
小题5:The doctor always ________ ________（给……做检查）his patients carefully.
小题6:你不得在教室乱扔垃圾。
You must not litter in the classroom .
小题7:由于脚伤刘翔不得不放弃比赛。
Liu Xiang had to ________ _________ the race because his foot was hurt.
小题8:昨晚孩子们直到做完他们的家庭作业才去睡觉。
Children ________ go to bed ________ they finished their homework last night.
小题9:熬夜太晚对身体健康有害。
___________ __________ late is bad for health.
小题10:我们该做什么来与SARS 作斗争呢?
What we do fight SARS ?