【2020最新整理国开(电大)人文英语1-3896网上形考机考题库】It’s been a(n) ___________ tradition ever since. People celebrate it every year.

【2020最新整理国开(电大)人文英语1-3896网上形考机考题库】It’s been a(n) ___________ tradition ever since. People celebrate it every year.
选择一项：
A. annual
B. delicious
C. crowded