Question

9.   We must often eat__________ food.

A. difficult                        B. relaxing

C. healthy                          D. boring

Answer 1

9.  C考査形容词辨析。句意:我们必须经常吃健康的食物。difficult"困难的"；relaxing"令人放松的"； heahhy"健康的";boring"无聊的"。故选C。