当大家欣赏焰火表演的时候，自己在空空的教室中做雅思模拟题。

When my friends were watching fireworks performance I was taking the IELTS mock test alone.

youdao

当大家欣赏焰火表演的时候，自己在空空的教室中做雅思模拟题。

When my friends were watching fireworks performance I was taking the IELTS mock test alone.

youdao