Pleas yourroom because it’s dirty.—-OK, I will.

Paul started hiking in 2010 and he has hiked across 11 countries __________.

e early 20th century, the school keeps on inspiring children’s love of art.

__________is it from Nanjing to Yangzhou — About one hour’s bus ride.

下列句子中，没有语病的一项是（ ）