第18题: [单项选择]Being a pop star can be quite a hard life, with a lot of travelling ______heavy schedules. A. with regard to B. as to C. in relation to D. owing to 参考答案:D 答案解析:D项 owing to意为“由于,因为”符合题意,如:Owing to the immediate danger of war,there will be an extraordinary meeti