2019年mba考试英语模拟题——连词659

{01}It has been many years since I was last in London_______I still remember something that happened during that visit. A.and B.for C.but D.as 解析：根据句前的many years和句后的still remember答案应选表示转折的连词but.
本题选C。
{02}They were surprised that a child should work out the problem ________ they themselves couldn"t. A.once B.then C.While D.if 解析：
while（implying a contrast）含相对之意，表示对比转折。
本题选C。
{03}____ we can’t remove our troubles in life for ever,we can leave them behind when we are on vacation. A.When B.While C.Unless D.Until 解析：   while在这里表示“虽然，尽管”的意思。题干中前后有转折的意思，只有B项符合题意。
本题选B。