【题目】My grandfather still plays tennis now and then, __________ he’s in his nineties.
A. as long as B. as if
C. even though D. in case
在线课程【答案】C
【解析】试题分析：题目考查状语从句。句意：即使是九十多岁了，我的爷爷仍然时不时地打打网球。A.as long as只要，引导条件句；B.as if似乎，引导方式状语从句或表语从句；C. even though即使，引导让步状语从句；D.in case以防，引导目的状语从句。这里是转折关系，故选C。