问题
选择题
Sorry, we are late,--our plane was _____ because of the heavy rain.
A．held out
B．held on
C．held up
D．held back
答案
答案：C
考查短语辨析。held out 伸出，held on 继续，held up 阻止，held back 抑制，句意：对不起，我们迟到了。我们飞机由于大雨被阻止了。所以选C。