It sounds like something is wrong with the car’s engine . , we’d better take it to the garage immediately .
A. Otherwise
B. If not
C. But for that
D. If so
网友回答
A. Otherwise
B. If not
C. But for that
(答案→)D. If so
解析：词义辨析。A否则，要不然；B如果不；C要不是那件事；D如果这样；句意：听起来好像汽车发动机出了问题。如果那样，我们要立刻去汽修厂。根据句意说明D正确。