【单选题】The _______ driver drove his car very ____ ___ and it crashed _______ a tree.
A.
careless ;carelessly ;into
B.
careless ; carefully ;on
C.
careless ; carefully ;on
D.
careful;carelessly ;into.
【单选题】If only I _________ crashed the car!
【简答题】为什么说氢氯噻嗪是治疗高血压病的常用一线药物。