We no longer keep up the close friendship we used to have years ago,（ ）we still visit each other occasionally.
A、
since
B、
though
C、
because
D、
for
【正确答案】：B
【题目解析】：
前半句为“再也不能保持我们多年前亲密的友谊”，后半句为“我们偶尔也会相见”，前后为转折关系，选B。句意：我们再也不能保持我们多年前亲密的友谊，尽管我们偶尔也会相见。
We no longer keep up the close friendship we used to have years ago,（ ）we still visit each other occasionally.
We no longer keep up the close friendship we used to have years ago,（ ）we still visit each other occasionally.
since
though
because
for
前半句为“再也不能保持我们多年前亲密的友谊”，后半句为“我们偶尔也会相见”，前后为转折关系，选B。句意：我们再也不能保持我们多年前亲密的友谊，尽管我们偶尔也会相见。