答案：A

题目分析：句意：像吃太多垃圾食品这样的习惯对我们的健康有害。A. eating too much junk food吃太多的垃圾食品； B. drinking much too coffee 和太多的咖啡，写too much 才对；C. playing basketball 打篮球；D. stay up late熬夜。结合语境可知选A.